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10018438872 = 2331332110381
BaseRepresentation
bin10010101010010010…
…10011111011011000
3221212012110102111120
421111021103323120
5131004210020442
64334041525240
7503160216411
oct112511237330
927765412446
1010018438872
114281169452
121b371a3820
13c38775150
146b07a2808
153d98014ec
hex255253ed8

10018438872 has 32 divisors (see below), whose sum is σ = 26972720880. Its totient is φ = 3082596480.

The previous prime is 10018438813. The next prime is 10018438879. The reversal of 10018438872 is 27883481001.

10018438872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10018438879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16054879 + ... + 16055502.

Almost surely, 210018438872 is an apocalyptic number.

10018438872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10018438872 is an abundant number, since it is smaller than the sum of its proper divisors (16954282008).

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

10018438872 is a wasteful number, since it uses less digits than its factorization.

10018438872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32110403 (or 32110399 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 10018438872 in words is "ten billion, eighteen million, four hundred thirty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 32110381 64220762 96331143 128441524 192662286 256883048 385324572 417434953 770649144 834869906 1252304859 1669739812 2504609718 3339479624 5009219436 10018438872