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31424500800 = 2634527114767
BaseRepresentation
bin11101010001000010…
…111101010001000000
310000010000202001010000
4131101002331101000
51003324133011200
622234120040000
72161504564260
oct352102752100
9100100661100
1031424500800
1112366347620
126110003000
132c6a541794
1417416d77a0
15c3dc0d300
hex7510bd440

31424500800 has 1680 divisors, whose sum is σ = 149269874688. Its totient is φ = 6295449600.

The previous prime is 31424500759. The next prime is 31424500829. The reversal of 31424500800 is 800542413.

It is a tau number, because it is divible by the number of its divisors (1680).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 469022367 + ... + 469022433.

Almost surely, 231424500800 is an apocalyptic number.

31424500800 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31424500800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74634937344).

31424500800 is an abundant number, since it is smaller than the sum of its proper divisors (117845373888).

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

31424500800 is a wasteful number, since it uses less digits than its factorization.

31424500800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The spelling of 31424500800 in words is "thirty-one billion, four hundred twenty-four million, five hundred thousand, eight hundred".