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30314231988 = 2234651543149
BaseRepresentation
bin11100001110110111…
…100111100010110100
32220020122120112121220
4130032313213202310
5444040420410423
621532015110340
72122133502045
oct341667474264
986218515556
1030314231988
1111946659197
125a602123b0
132b21506aa1
1416780848cc
15bc64e99e3
hex70ede78b4

30314231988 has 24 divisors (see below), whose sum is σ = 70748546400. Its totient is φ = 10102552800.

The previous prime is 30314231957. The next prime is 30314232007. The reversal of 30314231988 is 88913241303.

It is a super-2 number, since 2×303142319882 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215763 + ... + 327386.

It is an arithmetic number, because the mean of its divisors is an integer number (2947856100).

Almost surely, 230314231988 is an apocalyptic number.

It is an amenable number.

30314231988 is an abundant number, since it is smaller than the sum of its proper divisors (40434314412).

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

30314231988 is a wasteful number, since it uses less digits than its factorization.

30314231988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547807 (or 547805 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 30314231988 in words is "thirty billion, three hundred fourteen million, two hundred thirty-one thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 4651 9302 13953 18604 27906 55812 543149 1086298 1629447 2172596 3258894 6517788 2526185999 5052371998 7578557997 10104743996 15157115994 30314231988