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8100938456 = 231377893639
BaseRepresentation
bin1111000101101101…
…01000001011011000
3202220120100022102122
413202312220023120
5113042320012311
63415503120412
7404514561242
oct74266501330
922816308378
108100938456
11348784aa66
1216a0ba3108
139c1424b10
1456bc61092
153262d80db
hex1e2da82d8

8100938456 has 16 divisors (see below), whose sum is σ = 16357664400. Its totient is φ = 3738894624.

The previous prime is 8100938453. The next prime is 8100938519. The reversal of 8100938456 is 6548390018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8100938453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38946716 + ... + 38946923.

It is an arithmetic number, because the mean of its divisors is an integer number (1022354025).

Almost surely, 28100938456 is an apocalyptic number.

It is an amenable number.

8100938456 is an abundant number, since it is smaller than the sum of its proper divisors (8256725944).

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

8100938456 is a wasteful number, since it uses less digits than its factorization.

8100938456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77893658 (or 77893654 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 8100938456 is about 90005.2134934416. The cubic root of 8100938456 is about 2008.3764069265.

The spelling of 8100938456 in words is "eight billion, one hundred million, nine hundred thirty-eight thousand, four hundred fifty-six".

Divisors: 1 2 4 8 13 26 52 104 77893639 155787278 311574556 623149112 1012617307 2025234614 4050469228 8100938456