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87672032125 = 531913672127
BaseRepresentation
bin101000110100110101…
…0010000101101111101
322101022000101200112221
41101221222100231331
52414023020012000
6104135335525341
76222410656126
oct1215152205575
9271260350487
1087672032125
11341aa6383a7
1214ba9229851
1383627370b2
144359a6d04d
152431cd361a
hex1469a90b7d

87672032125 has 16 divisors (see below), whose sum is σ = 109987577856. Its totient is φ = 69770394000.

The previous prime is 87672032113. The next prime is 87672032153. The reversal of 87672032125 is 52123027678.

It is not a de Polignac number, because 87672032125 - 235 = 53312293757 is a prime.

It is a Duffinian number.

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, 1812189 + ... + 1859938.

It is an arithmetic number, because the mean of its divisors is an integer number (6874223616).

Almost surely, 287672032125 is an apocalyptic number.

It is an amenable number.

87672032125 is a deficient number, since it is larger than the sum of its proper divisors (22315545731).

87672032125 is a wasteful number, since it uses less digits than its factorization.

87672032125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672333 (or 3672323 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 87672032125 in words is "eighty-seven billion, six hundred seventy-two million, thirty-two thousand, one hundred twenty-five".

Divisors: 1 5 25 125 191 955 4775 23875 3672127 18360635 91803175 459015875 701376257 3506881285 17534406425 87672032125