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400230087312 = 2431122318116553
BaseRepresentation
bin1011101001011111001…
…00100111101010010000
31102021001201112000110010
411310233210213222100
523024132400243222
6503510235434520
740626034416336
oct5645744475220
91367051460403
10400230087312
111448114a5400
12656982b5a40
132b9841cb293
141552a977b56
15a626be780c
hex5d2f927a90

400230087312 has 240 divisors, whose sum is σ = 1192501425024. Its totient is φ = 115360819200.

The previous prime is 400230087251. The next prime is 400230087329. The reversal of 400230087312 is 213780032004.

It is a super-2 number, since 2×4002300873122 (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400230087312.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24170428 + ... + 24186980.

Almost surely, 2400230087312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400230087312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596250712512).

400230087312 is an abundant number, since it is smaller than the sum of its proper divisors (792271337712).

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

400230087312 is a wasteful number, since it uses less digits than its factorization.

400230087312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16790 (or 16773 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 400230087312 in words is "four hundred billion, two hundred thirty million, eighty-seven thousand, three hundred twelve".