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85755972 = 22313752163
BaseRepresentation
bin1010001110010…
…00100001000100
312222100212002010
411013020201010
5133423142342
612302014220
72060625261
oct507104104
9188325063
1085755972
1144452805
1224877370
13149c72a3
14b564268
1577de29c
hex51c8844

85755972 has 24 divisors (see below), whose sum is σ = 201561696. Its totient is φ = 28376128.

The previous prime is 85755893. The next prime is 85755979. The reversal of 85755972 is 27955758.

It is not an unprimeable number, because it can be changed into a prime (85755979) 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, 24438 + ... + 27725.

It is an arithmetic number, because the mean of its divisors is an integer number (8398404).

Almost surely, 285755972 is an apocalyptic number.

It is an amenable number.

85755972 is an abundant number, since it is smaller than the sum of its proper divisors (115805724).

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

85755972 is a wasteful number, since it uses less digits than its factorization.

85755972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52307 (or 52305 counting only the distinct ones).

The product of its digits is 882000, while the sum is 48.

The square root of 85755972 is about 9260.4520408023. The cubic root of 85755972 is about 440.9826042984.

The spelling of 85755972 in words is "eighty-five million, seven hundred fifty-five thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 137 274 411 548 822 1644 52163 104326 156489 208652 312978 625956 7146331 14292662 21438993 28585324 42877986 85755972