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69313992 = 23311262553
BaseRepresentation
bin1000010000110…
…10010111001000
311211102111220220
410020122113020
5120221021432
610513350040
71501105416
oct410322710
9154374826
1069313992
11361426a0
121b268320
131148b4c7
1492c42b6
15614272c
hex421a5c8

69313992 has 32 divisors (see below), whose sum is σ = 189038880. Its totient is φ = 21004160.

The previous prime is 69313961. The next prime is 69313999. The reversal of 69313992 is 29931396.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (69313999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131013 + ... + 131540.

It is an arithmetic number, because the mean of its divisors is an integer number (5907465).

Almost surely, 269313992 is an apocalyptic number.

It is an amenable number.

69313992 is an abundant number, since it is smaller than the sum of its proper divisors (119724888).

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

69313992 is a wasteful number, since it uses less digits than its factorization.

69313992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262573 (or 262569 counting only the distinct ones).

The product of its digits is 78732, while the sum is 42.

The square root of 69313992 is about 8325.5025073565. The cubic root of 69313992 is about 410.7778056752. Note that the first 3 decimals are identical.

The spelling of 69313992 in words is "sixty-nine million, three hundred thirteen thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 262553 525106 787659 1050212 1575318 2100424 2888083 3150636 5776166 6301272 8664249 11552332 17328498 23104664 34656996 69313992