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45757060281 = 3211326312
BaseRepresentation
bin101010100111010101…
…010101010010111001
311101002212222111112100
4222213111111102321
51222202301412111
633004232334013
73206621411052
oct524725252271
9141085874470
1045757060281
11184507386a9
128a4bb44309
134412a0b3ca
14230101b729
1512cc132756
hexaa75554b9

45757060281 has 27 divisors (see below), whose sum is σ = 66789452847. Its totient is φ = 30186838080.

The previous prime is 45757060273. The next prime is 45757060303. The reversal of 45757060281 is 18206075754.

The square root of 45757060281 is 213909.

It is a perfect power (a square), and thus also a powerful number.

45757060281 is a `hidden beast` number, since 4 + 57 + 570 + 6 + 0 + 28 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 806276025 + 44950784256 = 28395^2 + 212016^2 .

It is not a de Polignac number, because 45757060281 - 23 = 45757060273 is a prime.

It is a super-2 number, since 2×457570602812 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45757060781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 72514836 + ... + 72515466.

Almost surely, 245757060281 is an apocalyptic number.

45757060281 is the 213909-th square number.

45757060281 is the 106955-th centered octagonal number.

It is an amenable number.

45757060281 is a deficient number, since it is larger than the sum of its proper divisors (21032392566).

45757060281 is an frugal number, since it uses more digits than its factorization.

45757060281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 45757060281 in words is "forty-five billion, seven hundred fifty-seven million, sixty thousand, two hundred eighty-one".

Divisors: 1 3 9 113 339 631 1017 1893 5679 12769 38307 71303 114921 213909 398161 641727 1194483 3583449 8057239 24171717 44992193 72515151 134976579 404929737 5084117809 15252353427 45757060281