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87101451942 = 23233363117159
BaseRepresentation
bin101000100011110100…
…1101010111010100110
322022211020202012200120
41101013221222322212
52411340432430232
6104002554222410
76202312061061
oct1210751527246
9268736665616
1087101451942
1133a3755402a
1214a6a124a06
1382a146c39b
144303d838d8
1523ebb7792c
hex1447a6aea6

87101451942 has 32 divisors (see below), whose sum is σ = 175008936960. Its totient is φ = 28899562560.

The previous prime is 87101451929. The next prime is 87101451959. The reversal of 87101451942 is 24915410178.

It is a junction number, because it is equal to n+sod(n) for n = 87101451894 and 87101451903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5067559 + ... + 5084717.

It is an arithmetic number, because the mean of its divisors is an integer number (5469029280).

Almost surely, 287101451942 is an apocalyptic number.

87101451942 is an abundant number, since it is smaller than the sum of its proper divisors (87907485018).

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

87101451942 is a wasteful number, since it uses less digits than its factorization.

87101451942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21028.

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 87101451942 in words is "eighty-seven billion, one hundred one million, four hundred fifty-one thousand, nine hundred forty-two".

Divisors: 1 2 3 6 233 466 699 1398 3631 7262 10893 17159 21786 34318 51477 102954 846023 1692046 2538069 3998047 5076138 7996094 11994141 23988282 62304329 124608658 186912987 373825974 14516908657 29033817314 43550725971 87101451942