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289014552 = 233217389607
BaseRepresentation
bin10001001110100…
…000001100011000
3202010211110102200
4101032200030120
51042441431202
644402330200
710106404011
oct2116401430
9663743380
10289014552
11139160a02
1280959960
1347b52838
142a554008
151a58de1c
hex113a0318

289014552 has 96 divisors (see below), whose sum is σ = 832291200. Its totient is φ = 90289152.

The previous prime is 289014547. The next prime is 289014553. The reversal of 289014552 is 255410982.

289014552 is a `hidden beast` number, since 2 + 8 + 90 + 14 + 552 = 666.

It is a super-2 number, since 2×2890145522 = 167058822535521408, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289014553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 475833 + ... + 476439.

It is an arithmetic number, because the mean of its divisors is an integer number (8669700).

Almost surely, 2289014552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289014552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416145600).

289014552 is an abundant number, since it is smaller than the sum of its proper divisors (543276648).

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

289014552 is a wasteful number, since it uses less digits than its factorization.

289014552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 289014552 is about 17000.4279946124. The cubic root of 289014552 is about 661.1599985901.

The spelling of 289014552 in words is "two hundred eighty-nine million, fourteen thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 34 36 51 68 72 102 136 153 204 306 389 408 607 612 778 1167 1214 1224 1556 1821 2334 2428 3112 3501 3642 4668 4856 5463 6613 7002 7284 9336 10319 10926 13226 14004 14568 19839 20638 21852 26452 28008 30957 39678 41276 43704 52904 59517 61914 79356 82552 92871 119034 123828 158712 185742 236123 238068 247656 371484 472246 476136 708369 742968 944492 1416738 1888984 2125107 2833476 4014091 4250214 5666952 8028182 8500428 12042273 16056364 17000856 24084546 32112728 36126819 48169092 72253638 96338184 144507276 289014552