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312419072 = 287313557
BaseRepresentation
bin10010100111110…
…010001100000000
3210202212112101202
4102213302030000
51114434402242
651000120332
710512342530
oct2247621400
9722775352
10312419072
11150397089
12887660a8
134c958774
142d6c74c0
151c663932
hex129f2300

312419072 has 72 divisors (see below), whose sum is σ = 716266656. Its totient is φ = 133226496.

The previous prime is 312419069. The next prime is 312419077. The reversal of 312419072 is 270914213.

It is not an unprimeable number, because it can be changed into a prime (312419077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560618 + ... + 561174.

It is an arithmetic number, because the mean of its divisors is an integer number (9948148).

Almost surely, 2312419072 is an apocalyptic number.

312419072 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 312419072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358133328).

312419072 is an abundant number, since it is smaller than the sum of its proper divisors (403847584).

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

312419072 is an equidigital number, since it uses as much as digits as its factorization.

312419072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 312419072 is about 17675.3803919463. The cubic root of 312419072 is about 678.5458197875.

The spelling of 312419072 in words is "three hundred twelve million, four hundred nineteen thousand, seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 313 448 557 626 896 1114 1252 1792 2191 2228 2504 3899 4382 4456 5008 7798 8764 8912 10016 15596 17528 17824 20032 31192 35056 35648 40064 62384 70112 71296 80128 124768 140224 142592 174341 249536 280448 348682 499072 560896 697364 998144 1220387 1394728 2440774 2789456 4881548 5578912 9763096 11157824 19526192 22315648 39052384 44631296 78104768 156209536 312419072