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86758518992 = 2447673171427
BaseRepresentation
bin101000011001100110…
…1011111000011010000
322021221100110102010012
41100303031133003100
52410140140101432
6103504544054052
76160646146415
oct1206315370320
9267840412105
1086758518992
1133880a16472
1214993304328
1382483bba92
1442b05d610c
1523cb9d7cb2
hex143335f0d0

86758518992 has 40 divisors (see below), whose sum is σ = 171927198336. Its totient is φ = 42392964096.

The previous prime is 86758518991. The next prime is 86758519019. The reversal of 86758518992 is 29981585768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86758518991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420383 + ... + 591809.

Almost surely, 286758518992 is an apocalyptic number.

It is an amenable number.

86758518992 is a deficient number, since it is larger than the sum of its proper divisors (85168679344).

86758518992 is a wasteful number, since it uses less digits than its factorization.

86758518992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172155 (or 172149 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 68.

The spelling of 86758518992 in words is "eighty-six billion, seven hundred fifty-eight million, five hundred eighteen thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 47 94 188 376 673 752 1346 2692 5384 10768 31631 63262 126524 171427 253048 342854 506096 685708 1371416 2742832 8057069 16114138 32228276 64456552 115370371 128913104 230740742 461481484 922962968 1845925936 5422407437 10844814874 21689629748 43379259496 86758518992