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642011552314 = 21147620900921
BaseRepresentation
bin10010101011110101101…
…11101101101000111010
32021101010220000001000021
421111322313231220322
541004314424133224
61210534103401054
764245434103556
oct11257267555072
92241126001007
10642011552314
11228303869670
12a451445318a
13487066a03c2
1423105a76866
1511a7824a1e4
hex957adeda3a

642011552314 has 16 divisors (see below), whose sum is σ = 1072916793216. Its totient is φ = 285614423200.

The previous prime is 642011552251. The next prime is 642011552321. The reversal of 642011552314 is 413255110246.

It is a self number, because there is not a number n which added to its sum of digits gives 642011552314.

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, 310449427 + ... + 310451494.

It is an arithmetic number, because the mean of its divisors is an integer number (67057299576).

Almost surely, 2642011552314 is an apocalyptic number.

642011552314 is a deficient number, since it is larger than the sum of its proper divisors (430905240902).

642011552314 is a wasteful number, since it uses less digits than its factorization.

642011552314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620900981.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 642011552314 in words is "six hundred forty-two billion, eleven million, five hundred fifty-two thousand, three hundred fourteen".

Divisors: 1 2 11 22 47 94 517 1034 620900921 1241801842 6829910131 13659820262 29182343287 58364686574 321005776157 642011552314