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86875438079 = 1711399448313
BaseRepresentation
bin101000011101000101…
…1011111101111111111
322022020111110111221202
41100322023133233333
52410410103004304
6103524322050115
76163566016403
oct1207213375777
9268214414852
1086875438079
1133930a13511
1214a064a993b
1382666a7581
1442c1d4d103
1523d6dd081e
hex143a2dfbff

86875438079 has 8 divisors (see below), whose sum is σ = 91994032800. Its totient is φ = 81757762816.

The previous prime is 86875438021. The next prime is 86875438099. The reversal of 86875438079 is 97083457868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86875438079 - 28 = 86875437823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86875438099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30374 + ... + 417939.

It is an arithmetic number, because the mean of its divisors is an integer number (11499254100).

Almost surely, 286875438079 is an apocalyptic number.

86875438079 is a deficient number, since it is larger than the sum of its proper divisors (5118594721).

86875438079 is a wasteful number, since it uses less digits than its factorization.

86875438079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459729.

The product of its (nonzero) digits is 81285120, while the sum is 65.

The spelling of 86875438079 in words is "eighty-six billion, eight hundred seventy-five million, four hundred thirty-eight thousand, seventy-nine".

Divisors: 1 17 11399 193783 448313 7621321 5110319887 86875438079