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2057490960642 = 2321325153236581
BaseRepresentation
bin11101111100001100000…
…001001001000100000010
321021200202002020020202200
4131330030001021010002
5232202220141220032
64213110455454030
7301435354415145
oct35741401110402
97250662206680
102057490960642
117236390104a7
12292909687316
1311c036248890
147182401c05c
15387c031b47c
hex1df0c049102

2057490960642 has 96 divisors (see below), whose sum is σ = 4821577016256. Its totient is φ = 630337680000.

The previous prime is 2057490960641. The next prime is 2057490960643. The reversal of 2057490960642 is 2460690947502.

2057490960642 is a `hidden beast` number, since 2 + 0 + 5 + 7 + 490 + 96 + 0 + 64 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2057490960641) and next prime (2057490960643).

It is not an unprimeable number, because it can be changed into a prime (2057490960641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 312637792 + ... + 312644372.

It is an arithmetic number, because the mean of its divisors is an integer number (50224760586).

Almost surely, 22057490960642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2057490960642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2410788508128).

2057490960642 is an abundant number, since it is smaller than the sum of its proper divisors (2764086055614).

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

2057490960642 is a wasteful number, since it uses less digits than its factorization.

2057490960642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12176 (or 12173 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 2057490960642 in words is "two trillion, fifty-seven billion, four hundred ninety million, nine hundred sixty thousand, six hundred forty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 251 502 753 1506 2259 3263 4518 5323 6526 6581 9789 10646 13162 15969 19578 19743 29367 31938 39486 47907 58734 59229 69199 85553 95814 118458 138398 171106 207597 256659 415194 513318 622791 769977 1245582 1336073 1539954 1651831 2672146 3303662 4008219 4955493 8016438 9910986 12024657 14866479 17368949 21473803 24049314 29732958 34737898 35030663 42947606 52106847 64421409 70061326 104213694 105091989 128842818 156320541 193264227 210183978 312641082 315275967 386528454 455398619 630551934 910797238 1366195857 2732391714 4098587571 8197175142 8792696413 17585392826 26378089239 52756178478 79134267717 114305053369 158268535434 228610106738 342915160107 685830320214 1028745480321 2057490960642