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8723968 = 29111549
BaseRepresentation
bin100001010001…
…111000000000
3121102020000221
4201101320000
54213131333
6510552424
7134103211
oct41217000
917366027
108723968
114a194a0
122b08714
131a65b16
141231408
15b74d2d
hex851e00

8723968 has 40 divisors (see below), whose sum is σ = 19027800. Its totient is φ = 3962880.

The previous prime is 8723951. The next prime is 8723977. The reversal of 8723968 is 8693278.

It is a super-2 number, since 2×87239682 = 152215235330048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4858 + ... + 6406.

It is an arithmetic number, because the mean of its divisors is an integer number (475695).

Almost surely, 28723968 is an apocalyptic number.

8723968 is a gapful number since it is divisible by the number (88) 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 8723968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9513900).

8723968 is an abundant number, since it is smaller than the sum of its proper divisors (10303832).

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

8723968 is a wasteful number, since it uses less digits than its factorization.

8723968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578 (or 1562 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 8723968 is about 2953.6364028093. The cubic root of 8723968 is about 205.8597090486.

The spelling of 8723968 in words is "eight million, seven hundred twenty-three thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 128 176 256 352 512 704 1408 1549 2816 3098 5632 6196 12392 17039 24784 34078 49568 68156 99136 136312 198272 272624 396544 545248 793088 1090496 2180992 4361984 8723968