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69115968 = 2632119993
BaseRepresentation
bin1000001111010…
…10000001000000
311211001110021200
410013222001000
5120143202333
610505221200
71466322165
oct407520100
9154043250
1069115968
1136017939
121b191800
131141c32c
14927206c
156103c13
hex41ea040

69115968 has 42 divisors (see below), whose sum is σ = 198110094. Its totient is φ = 23038464.

The previous prime is 69115967. The next prime is 69115973. The reversal of 69115968 is 86951196.

It can be written as a sum of positive squares in only one way, i.e., 44195904 + 24920064 = 6648^2 + 4992^2 .

It is not an unprimeable number, because it can be changed into a prime (69115967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59421 + ... + 60572.

It is an arithmetic number, because the mean of its divisors is an integer number (4716907).

Almost surely, 269115968 is an apocalyptic number.

It is an amenable number.

69115968 is an abundant number, since it is smaller than the sum of its proper divisors (128994126).

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

69115968 is a wasteful number, since it uses less digits than its factorization.

69115968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120011 (or 119998 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 69115968 is about 8313.6013856812. The cubic root of 69115968 is about 410.3862471595.

The spelling of 69115968 in words is "sixty-nine million, one hundred fifteen thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 119993 239986 359979 479972 719958 959944 1079937 1439916 1919888 2159874 2879832 3839776 4319748 5759664 7679552 8639496 11519328 17278992 23038656 34557984 69115968