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85163151 = 371487821
BaseRepresentation
bin1010001001101…
…11110010001111
312221020201212210
411010313302033
5133300210101
612241201503
72052606033
oct504676217
9187221783
1085163151
1144088377
1224630293
131484a4c8
14b44c1c3
1577237d6
hex5137c8f

85163151 has 16 divisors (see below), whose sum is σ = 115527168. Its totient is φ = 55792800.

The previous prime is 85163147. The next prime is 85163171. The reversal of 85163151 is 15136158.

It is not a de Polignac number, because 85163151 - 22 = 85163147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85163171) 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, 103321 + ... + 104141.

It is an arithmetic number, because the mean of its divisors is an integer number (7220448).

Almost surely, 285163151 is an apocalyptic number.

85163151 is a deficient number, since it is larger than the sum of its proper divisors (30364017).

85163151 is a wasteful number, since it uses less digits than its factorization.

85163151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382.

The product of its digits is 3600, while the sum is 30.

The square root of 85163151 is about 9228.3883208283. The cubic root of 85163151 is about 439.9641000324.

The spelling of 85163151 in words is "eighty-five million, one hundred sixty-three thousand, one hundred fifty-one".

Divisors: 1 3 71 213 487 821 1461 2463 34577 58291 103731 174873 399827 1199481 28387717 85163151