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28813183128 = 23321676323873
BaseRepresentation
bin11010110101011001…
…100100100010011000
32202101001002100200200
4122311121210202120
5433002133330003
621123034302200
72040006005232
oct326531444230
982331070620
1028813183128
1111246321a44
125701587960
1329425382b2
14157498b252
15b398446a3
hex6b5664898

28813183128 has 48 divisors (see below), whose sum is σ = 78043628520. Its totient is φ = 9603419136.

The previous prime is 28813183127. The next prime is 28813183129. The reversal of 28813183128 is 82138131882.

28813183128 is a `hidden beast` number, since 288 + 1 + 318 + 31 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (28813183127) and next prime (28813183129).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28813183127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1195000 + ... + 1218872.

Almost surely, 228813183128 is an apocalyptic number.

It is an amenable number.

28813183128 is an abundant number, since it is smaller than the sum of its proper divisors (49230445392).

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

28813183128 is a wasteful number, since it uses less digits than its factorization.

28813183128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40648 (or 40641 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The spelling of 28813183128 in words is "twenty-eight billion, eight hundred thirteen million, one hundred eighty-three thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 16763 23873 33526 47746 50289 67052 71619 95492 100578 134104 143238 150867 190984 201156 214857 286476 301734 402312 429714 572952 603468 859428 1206936 1718856 400183099 800366198 1200549297 1600732396 2401098594 3201464792 3601647891 4802197188 7203295782 9604394376 14406591564 28813183128