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85757748 = 22315714549
BaseRepresentation
bin1010001110010…
…00111100110100
312222100221111220
411013020330310
5133423221443
612302030340
72060633406
oct507107464
9188327456
1085757748
114445407a
12248783b0
13149c803b
14b564b76
1577dea83
hex51c8f34

85757748 has 24 divisors (see below), whose sum is σ = 200272800. Its totient is φ = 28561440.

The previous prime is 85757729. The next prime is 85757759. The reversal of 85757748 is 84775758.

It is a self number, because there is not a number n which added to its sum of digits gives 85757748.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16578 + ... + 21126.

It is an arithmetic number, because the mean of its divisors is an integer number (8344700).

Almost surely, 285757748 is an apocalyptic number.

It is an amenable number.

85757748 is an abundant number, since it is smaller than the sum of its proper divisors (114515052).

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

85757748 is a wasteful number, since it uses less digits than its factorization.

85757748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6127 (or 6125 counting only the distinct ones).

The product of its digits is 2195200, while the sum is 51.

The square root of 85757748 is about 9260.5479319531. The cubic root of 85757748 is about 440.9856485167.

The spelling of 85757748 in words is "eighty-five million, seven hundred fifty-seven thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 1571 3142 4549 4713 6284 9098 9426 13647 18196 18852 27294 54588 7146479 14292958 21439437 28585916 42878874 85757748