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90976889254 = 2612609285823
BaseRepresentation
bin101010010111010100…
…1010010100110100110
322200211100001211020211
41110232221102212212
52442310040424004
6105443314250034
76400330541116
oct1245651224646
9280740054224
1090976889254
113564609a489
121576bb8691a
13876b32a164
144590951046
152576ee5504
hex152ea529a6

90976889254 has 16 divisors (see below), whose sum is σ = 138756119040. Its totient is φ = 44725426560.

The previous prime is 90976889249. The next prime is 90976889299. The reversal of 90976889254 is 45298867909.

It is a self number, because there is not a number n which added to its sum of digits gives 90976889254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175387 + ... + 461209.

It is an arithmetic number, because the mean of its divisors is an integer number (8672257440).

Almost surely, 290976889254 is an apocalyptic number.

90976889254 is a deficient number, since it is larger than the sum of its proper divisors (47779229786).

90976889254 is a wasteful number, since it uses less digits than its factorization.

90976889254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288495.

The product of its (nonzero) digits is 78382080, while the sum is 67.

The spelling of 90976889254 in words is "ninety billion, nine hundred seventy-six million, eight hundred eighty-nine thousand, two hundred fifty-four".

Divisors: 1 2 61 122 2609 5218 159149 285823 318298 571646 17435203 34870406 745712207 1491424414 45488444627 90976889254