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85149625 = 531161927
BaseRepresentation
bin1010001001101…
…00011110111001
312221020001022211
411010310132321
5133244242000
612241015121
72052521431
oct504643671
9187201284
1085149625
11440791a0
12246244a1
13148442c2
14b4472c1
15771e7ba
hex51347b9

85149625 has 16 divisors (see below), whose sum is σ = 115929216. Its totient is φ = 61926000.

The previous prime is 85149619. The next prime is 85149629. The reversal of 85149625 is 52694158.

It is not a de Polignac number, because 85149625 - 217 = 85018553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85149629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29589 + ... + 32338.

It is an arithmetic number, because the mean of its divisors is an integer number (7245576).

Almost surely, 285149625 is an apocalyptic number.

It is an amenable number.

85149625 is a deficient number, since it is larger than the sum of its proper divisors (30779591).

85149625 is a wasteful number, since it uses less digits than its factorization.

85149625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61953 (or 61943 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 85149625 is about 9227.6554443694. The cubic root of 85149625 is about 439.9408064309.

The spelling of 85149625 in words is "eighty-five million, one hundred forty-nine thousand, six hundred twenty-five".

Divisors: 1 5 11 25 55 125 275 1375 61927 309635 681197 1548175 3405985 7740875 17029925 85149625