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312960672 = 2535167241
BaseRepresentation
bin10010101001110…
…110011010100000
3210210220001100000
4102221312122200
51120104220142
651015500000
710520056533
oct2251663240
9723801300
10312960672
11150726a92
1288987600
134cab813b
142d7c8a1a
151c71e14c
hex12a766a0

312960672 has 144 divisors (see below), whose sum is σ = 932323392. Its totient is φ = 103265280.

The previous prime is 312960671. The next prime is 312960673. The reversal of 312960672 is 276069213.

It is an interprime number because it is at equal distance from previous prime (312960671) and next prime (312960673).

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-3 number, since 3×3129606723 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (312960671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1298472 + ... + 1298712.

It is an arithmetic number, because the mean of its divisors is an integer number (6474468).

Almost surely, 2312960672 is an apocalyptic number.

312960672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312960672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466161696).

312960672 is an abundant number, since it is smaller than the sum of its proper divisors (619362720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312960672 is a wasteful number, since it uses less digits than its factorization.

312960672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 312960672 is about 17690.6945030431. The cubic root of 312960672 is about 678.9376954131.

The spelling of 312960672 in words is "three hundred twelve million, nine hundred sixty thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 167 216 241 243 288 324 334 432 482 486 501 648 668 723 864 964 972 1002 1296 1336 1446 1503 1928 1944 2004 2169 2592 2672 2892 3006 3856 3888 4008 4338 4509 5344 5784 6012 6507 7712 7776 8016 8676 9018 11568 12024 13014 13527 16032 17352 18036 19521 23136 24048 26028 27054 34704 36072 39042 40247 40581 48096 52056 54108 58563 69408 72144 78084 80494 81162 104112 108216 117126 120741 144288 156168 160988 162324 208224 216432 234252 241482 312336 321976 324648 362223 432864 468504 482964 624672 643952 649296 724446 937008 965928 1086669 1287904 1298592 1448892 1874016 1931856 2173338 2897784 3260007 3863712 4346676 5795568 6520014 8693352 9780021 11591136 13040028 17386704 19560042 26080056 34773408 39120084 52160112 78240168 104320224 156480336 312960672