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87151442132 = 2243506694431
BaseRepresentation
bin101000100101010100…
…0010111100011010100
322022221201210222100002
41101022220113203110
52411441232122012
6104011541510432
76203460015056
oct1211250274324
9268851728302
1087151442132
1133a62798437
1214a82a12418
1382ab923191
14430a8778d6
15240124e7c2
hex144aa178d4

87151442132 has 12 divisors (see below), whose sum is σ = 156061885056. Its totient is φ = 42562332120.

The previous prime is 87151442129. The next prime is 87151442153. The reversal of 87151442132 is 23124415178.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253347044 + ... + 253347387.

It is an arithmetic number, because the mean of its divisors is an integer number (13005157088).

Almost surely, 287151442132 is an apocalyptic number.

It is an amenable number.

87151442132 is a deficient number, since it is larger than the sum of its proper divisors (68910442924).

87151442132 is a wasteful number, since it uses less digits than its factorization.

87151442132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506694478 (or 506694476 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The spelling of 87151442132 in words is "eighty-seven billion, one hundred fifty-one million, four hundred forty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 43 86 172 506694431 1013388862 2026777724 21787860533 43575721066 87151442132