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57030140648 = 23133371627201
BaseRepresentation
bin110101000111010000…
…101110001011101000
312110012112021022121102
4311013100232023220
51413244204000043
642111013500532
74056155124425
oct650720561350
9173175238542
1057030140648
1122206033848
12b077341748
1354bb399970
142a90294d4c
15173bb646b8
hexd4742e2e8

57030140648 has 32 divisors (see below), whose sum is σ = 115498797960. Its totient is φ = 26243481600.

The previous prime is 57030140647. The next prime is 57030140689. The reversal of 57030140648 is 84604103075.

It can be written as a sum of positive squares in 4 ways, for example, as 45257456644 + 11772684004 = 212738^2 + 108502^2 .

It is a super-3 number, since 3×570301406483 (a number of 33 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (57030140647) 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 7 ways as a sum of consecutive naturals, for example, 778553 + ... + 848648.

Almost surely, 257030140648 is an apocalyptic number.

It is an amenable number.

57030140648 is an abundant number, since it is smaller than the sum of its proper divisors (58468657312).

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

57030140648 is a wasteful number, since it uses less digits than its factorization.

57030140648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627557 (or 1627553 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 57030140648 in words is "fifty-seven billion, thirty million, one hundred forty thousand, six hundred forty-eight".

Divisors: 1 2 4 8 13 26 52 104 337 674 1348 2696 4381 8762 17524 35048 1627201 3254402 6508804 13017608 21153613 42307226 84614452 169228904 548366737 1096733474 2193466948 4386933896 7128767581 14257535162 28515070324 57030140648