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28732655796 = 223131193154387
BaseRepresentation
bin11010110000100110…
…011000100010110100
32202011102120010221220
4122300212120202310
5432321024441141
621111040310340
72035010354535
oct326046304264
982142503856
1028732655796
1111204920629
12569a6123b0
13292b951ba0
141567dc868c
15b32739766
hex6b09988b4

28732655796 has 48 divisors (see below), whose sum is σ = 72260994624. Its totient is φ = 8833349376.

The previous prime is 28732655789. The next prime is 28732655797. The reversal of 28732655796 is 69755623782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28732655797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108915 + ... + 263301.

It is an arithmetic number, because the mean of its divisors is an integer number (1505437388).

Almost surely, 228732655796 is an apocalyptic number.

28732655796 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28732655796 is an abundant number, since it is smaller than the sum of its proper divisors (43528338828).

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

28732655796 is a wasteful number, since it uses less digits than its factorization.

28732655796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155600 (or 155598 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 60.

The spelling of 28732655796 in words is "twenty-eight billion, seven hundred thirty-two million, six hundred fifty-five thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1193 2386 3579 4772 7158 14316 15509 31018 46527 62036 93054 154387 186108 308774 463161 617548 926322 1852644 2007031 4014062 6021093 8028124 12042186 24084372 184183691 368367382 552551073 736734764 1105102146 2210204292 2394387983 4788775966 7183163949 9577551932 14366327898 28732655796