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57909464688 = 2433141949211
BaseRepresentation
bin110101111011101011…
…000100111001110000
312112110210212121102110
4311323223010321300
51422044310332223
642334144445320
74120023220365
oct657353047160
9175423777373
1057909464688
1122617423a29
12b281919840
1355cb60434a
142b34d8c46c
15178de59d93
hexd7bac4e70

57909464688 has 80 divisors (see below), whose sum is σ = 158191875072. Its totient is φ = 18224832000.

The previous prime is 57909464687. The next prime is 57909464689. The reversal of 57909464688 is 88646490975.

It is an interprime number because it is at equal distance from previous prime (57909464687) and next prime (57909464689).

It is a super-2 number, since 2×579094646882 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57909464681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413598 + ... + 535613.

Almost surely, 257909464688 is an apocalyptic number.

It is an amenable number.

57909464688 is an abundant number, since it is smaller than the sum of its proper divisors (100282410384).

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

57909464688 is a wasteful number, since it uses less digits than its factorization.

57909464688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949294 (or 949288 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 57909464688 in words is "fifty-seven billion, nine hundred nine million, four hundred sixty-four thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 31 41 48 62 82 93 123 124 164 186 246 248 328 372 492 496 656 744 984 1271 1488 1968 2542 3813 5084 7626 10168 15252 20336 30504 61008 949211 1898422 2847633 3796844 5695266 7593688 11390532 15187376 22781064 29425541 38917651 45562128 58851082 77835302 88276623 116752953 117702164 155670604 176553246 233505906 235404328 311341208 353106492 467011812 470808656 622682416 706212984 934023624 1206447181 1412425968 1868047248 2412894362 3619341543 4825788724 7238683086 9651577448 14477366172 19303154896 28954732344 57909464688