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85189756 = 2247453137
BaseRepresentation
bin1010001001111…
…10010001111100
312221022002101011
411010332101330
5133302033011
612241525004
72053046431
oct504762174
9187262334
1085189756
11440a6363
1224643764
1314859652
14b457b88
15772b621
hex513e47c

85189756 has 12 divisors (see below), whose sum is σ = 152254368. Its totient is φ = 41688512.

The previous prime is 85189739. The next prime is 85189757. The reversal of 85189756 is 65798158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85189757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226381 + ... + 226756.

It is an arithmetic number, because the mean of its divisors is an integer number (12687864).

Almost surely, 285189756 is an apocalyptic number.

It is an amenable number.

85189756 is a deficient number, since it is larger than the sum of its proper divisors (67064612).

85189756 is a wasteful number, since it uses less digits than its factorization.

85189756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453188 (or 453186 counting only the distinct ones).

The product of its digits is 604800, while the sum is 49.

The square root of 85189756 is about 9229.8296842358. The cubic root of 85189756 is about 440.0099102451.

The spelling of 85189756 in words is "eighty-five million, one hundred eighty-nine thousand, seven hundred fifty-six".

Divisors: 1 2 4 47 94 188 453137 906274 1812548 21297439 42594878 85189756