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102320312132 = 22130091966337
BaseRepresentation
bin101111101001011000…
…1000000111101000100
3100210002212201102010002
41133102301000331010
53134022444442012
6115001051220432
710251410205623
oct1372261007504
9323085642102
10102320312132
113a43716aa35
12179b6a47718
1398584470bc
144d492996ba
1529dccbe7c2
hex17d2c40f44

102320312132 has 12 divisors (see below), whose sum is σ = 179074401660. Its totient is φ = 51156197376.

The previous prime is 102320312089. The next prime is 102320312141. The reversal of 102320312132 is 231213023201.

It can be written as a sum of positive squares in 2 ways, for example, as 39507922756 + 62812389376 = 198766^2 + 250624^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 931133 + ... + 1035204.

It is an arithmetic number, because the mean of its divisors is an integer number (14922866805).

Almost surely, 2102320312132 is an apocalyptic number.

It is an amenable number.

102320312132 is a deficient number, since it is larger than the sum of its proper divisors (76754089528).

102320312132 is a wasteful number, since it uses less digits than its factorization.

102320312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979350 (or 1979348 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 102320312132 its reverse (231213023201), we get a palindrome (333533335333).

The spelling of 102320312132 in words is "one hundred two billion, three hundred twenty million, three hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 4 13009 26018 52036 1966337 3932674 7865348 25580078033 51160156066 102320312132