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85179290 = 2571216847
BaseRepresentation
bin1010001001110…
…11101110011010
312221021120000112
411010323232122
5133301214130
612241404322
72053004060
oct504735632
9187246015
1085179290
1144099509
12246396a2
1314854961
14b454030
157728495
hex513bb9a

85179290 has 16 divisors (see below), whose sum is σ = 175226112. Its totient is φ = 29204304.

The previous prime is 85179271. The next prime is 85179313. The reversal of 85179290 is 9297158.

It is a super-2 number, since 2×851792902 = 14511022889808200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608354 + ... + 608493.

It is an arithmetic number, because the mean of its divisors is an integer number (10951632).

Almost surely, 285179290 is an apocalyptic number.

85179290 is an abundant number, since it is smaller than the sum of its proper divisors (90046822).

85179290 is a wasteful number, since it uses less digits than its factorization.

85179290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216861.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 85179290 is about 9229.2627007795. The cubic root of 85179290 is about 439.9918903464.

The spelling of 85179290 in words is "eighty-five million, one hundred seventy-nine thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 1216847 2433694 6084235 8517929 12168470 17035858 42589645 85179290