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642858696414 = 232115472159333
BaseRepresentation
bin10010101101011010101…
…11010011111011011110
32021110022221001102020200
421112231113103323132
541013033311241124
61211154124524330
764305431521464
oct11265527237336
92243287042220
10642858696414
112286a8a7a560
12a47100b06a6
134881004b7bc
1423186394834
1511ac77d5bc9
hex95ad5d3ede

642858696414 has 48 divisors (see below), whose sum is σ = 1519537569264. Its totient is φ = 194798822400.

The previous prime is 642858696407. The next prime is 642858696419. The reversal of 642858696414 is 414696858246.

642858696414 is a `hidden beast` number, since 6 + 4 + 2 + 8 + 586 + 9 + 6 + 41 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642858696419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10805092 + ... + 10864424.

It is an arithmetic number, because the mean of its divisors is an integer number (31657032693).

Almost surely, 2642858696414 is an apocalyptic number.

642858696414 is an abundant number, since it is smaller than the sum of its proper divisors (876678872850).

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

642858696414 is a wasteful number, since it uses less digits than its factorization.

642858696414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114073 (or 114070 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 63.

The spelling of 642858696414 in words is "six hundred forty-two billion, eight hundred fifty-eight million, six hundred ninety-six thousand, four hundred fourteen".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 54721 59333 109442 118666 164163 177999 328326 355998 492489 533997 601931 652663 984978 1067994 1203862 1305326 1805793 1957989 3611586 3915978 5417379 5873967 10834758 11747934 3246761093 6493522186 9740283279 19480566558 29220849837 35714372023 58441699674 71428744046 107143116069 214286232138 321429348207 642858696414