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85151532 = 2237095961
BaseRepresentation
bin1010001001101…
…00111100101100
312221020010221110
411010310330230
5133244322112
612241032020
72052530124
oct504647454
9187203843
1085151532
114407a674
1224625610
131484512b
14b447c84
15772013c
hex5134f2c

85151532 has 12 divisors (see below), whose sum is σ = 198686936. Its totient is φ = 28383840.

The previous prime is 85151531. The next prime is 85151533. The reversal of 85151532 is 23515158.

It is an interprime number because it is at equal distance from previous prime (85151531) and next prime (85151533).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 85151532.

It is not an unprimeable number, because it can be changed into a prime (85151531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3547969 + ... + 3547992.

Almost surely, 285151532 is an apocalyptic number.

It is an amenable number.

85151532 is an abundant number, since it is smaller than the sum of its proper divisors (113535404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85151532 is a wasteful number, since it uses less digits than its factorization.

85151532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7095968 (or 7095966 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 85151532 is about 9227.7587744804. The cubic root of 85151532 is about 439.9440906922.

The spelling of 85151532 in words is "eighty-five million, one hundred fifty-one thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 12 7095961 14191922 21287883 28383844 42575766 85151532