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100311131312 = 2472930883969
BaseRepresentation
bin101110101101100000…
…0100110010010110000
3100120220212002110011122
41131123000212102300
53120414122200222
6114025435401412
710150542355610
oct1353300462260
9316825073148
10100311131312
11395a6022717
1217535bb3268
1395c8107002
144bd84d0a40
1529216e6a42
hex175b0264b0

100311131312 has 40 divisors (see below), whose sum is σ = 229776736800. Its totient is φ = 41508052992.

The previous prime is 100311131303. The next prime is 100311131329. The reversal of 100311131312 is 213131113001.

100311131312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 15438737 + ... + 15445232.

It is an arithmetic number, because the mean of its divisors is an integer number (5744418420).

Almost surely, 2100311131312 is an apocalyptic number.

It is an amenable number.

100311131312 is an abundant number, since it is smaller than the sum of its proper divisors (129465605488).

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

100311131312 is a wasteful number, since it uses less digits than its factorization.

100311131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30884013 (or 30884007 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 100311131312 its reverse (213131113001), we get a palindrome (313442244313).

The spelling of 100311131312 in words is "one hundred billion, three hundred eleven million, one hundred thirty-one thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 29 56 58 112 116 203 232 406 464 812 1624 3248 30883969 61767938 123535876 216187783 247071752 432375566 494143504 864751132 895635101 1729502264 1791270202 3459004528 3582540404 6269445707 7165080808 12538891414 14330161616 25077782828 50155565656 100311131312