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64242104454 = 23311190756713
BaseRepresentation
bin111011110101001000…
…001011100010000110
320010211010212001002000
4323311020023202012
52023031434320304
645302403130130
74432656610113
oct736510134206
9203733761060
1064242104454
1125276aa1a10
121054a673946
13609a588578
14317602990a
151a0ed9c939
hexef520b886

64242104454 has 64 divisors (see below), whose sum is σ = 155822849280. Its totient is φ = 19456752960.

The previous prime is 64242104453. The next prime is 64242104461. The reversal of 64242104454 is 45440124246.

64242104454 is a `hidden beast` number, since 64 + 2 + 42 + 104 + 454 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64242104453) 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 31 ways as a sum of consecutive naturals, for example, 1104402 + ... + 1161114.

It is an arithmetic number, because the mean of its divisors is an integer number (2434732020).

Almost surely, 264242104454 is an apocalyptic number.

64242104454 is an abundant number, since it is smaller than the sum of its proper divisors (91580744826).

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

64242104454 is a wasteful number, since it uses less digits than its factorization.

64242104454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58642 (or 58636 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

The spelling of 64242104454 in words is "sixty-four billion, two hundred forty-two million, one hundred four thousand, four hundred fifty-four".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 594 1907 3814 5721 11442 17163 20977 34326 41954 51489 56713 62931 102978 113426 125862 170139 188793 340278 377586 510417 566379 623843 1020834 1132758 1247686 1531251 1871529 3062502 3743058 5614587 11229174 16843761 33687522 108151691 216303382 324455073 648910146 973365219 1189668601 1946730438 2379337202 2920095657 3569005803 5840191314 7138011606 10707017409 21414034818 32121052227 64242104454