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30258431280 = 24345711237149
BaseRepresentation
bin11100001011100010…
…110000010100110000
32220002202120120110000
4130023202300110300
5443432124300110
621522303110000
72120555264550
oct341342602460
986082516400
1030258431280
1111918106300
125a455a2300
132b12a9a30c
1416708bb160
15bc16761c0
hex70b8b0530

30258431280 has 1200 divisors, whose sum is σ = 136494388800. Its totient is φ = 6076477440.

The previous prime is 30258431261. The next prime is 30258431297. The reversal of 30258431280 is 8213485203.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 203076646 + ... + 203076794.

It is an arithmetic number, because the mean of its divisors is an integer number (113745324).

Almost surely, 230258431280 is an apocalyptic number.

30258431280 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 30258431280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68247194400).

30258431280 is an abundant number, since it is smaller than the sum of its proper divisors (106235957520).

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

30258431280 is a wasteful number, since it uses less digits than its factorization.

30258431280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 30258431280 in words is "thirty billion, two hundred fifty-eight million, four hundred thirty-one thousand, two hundred eighty".