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85168052 = 2221292013
BaseRepresentation
bin1010001001110…
…00111110110100
312221020222121022
411010320332310
5133300334202
612241240312
72052626234
oct504707664
9187228538
1085168052
1144091022
1224633098
131484c7c8
14b44dcc4
157724ea2
hex5138fb4

85168052 has 6 divisors (see below), whose sum is σ = 149044098. Its totient is φ = 42584024.

The previous prime is 85168033. The next prime is 85168063. The reversal of 85168052 is 25086158.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 58583716 + 26584336 = 7654^2 + 5156^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10646003 + ... + 10646010.

It is an arithmetic number, because the mean of its divisors is an integer number (24840683).

Almost surely, 285168052 is an apocalyptic number.

It is an amenable number.

85168052 is a deficient number, since it is larger than the sum of its proper divisors (63876046).

85168052 is a wasteful number, since it uses less digits than its factorization.

85168052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21292017 (or 21292015 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 85168052 is about 9228.6538563325. The cubic root of 85168052 is about 439.9725396085.

The spelling of 85168052 in words is "eighty-five million, one hundred sixty-eight thousand, fifty-two".

Divisors: 1 2 4 21292013 42584026 85168052