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57018295240 = 2351425457381
BaseRepresentation
bin110101000110100011…
…100010001111001000
312110011200222111202121
4311012203202033020
51413233140421430
642105511541024
74055652340624
oct650643421710
9173150874677
1057018295240
11221aa383155
12b07338a774
1354b8ab014a
142a8c890184
15173aac4a7a
hexd468e23c8

57018295240 has 16 divisors (see below), whose sum is σ = 128291164380. Its totient is φ = 22807318080.

The previous prime is 57018295237. The next prime is 57018295241. The reversal of 57018295240 is 4259281075.

It can be written as a sum of positive squares in 2 ways, for example, as 53142236676 + 3876058564 = 230526^2 + 62258^2 .

It is a super-3 number, since 3×570182952403 (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (57018295241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712728651 + ... + 712728730.

Almost surely, 257018295240 is an apocalyptic number.

It is an amenable number.

57018295240 is an abundant number, since it is smaller than the sum of its proper divisors (71272869140).

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

57018295240 is a wasteful number, since it uses less digits than its factorization.

57018295240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425457392 (or 1425457388 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 57018295240 in words is "fifty-seven billion, eighteen million, two hundred ninety-five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1425457381 2850914762 5701829524 7127286905 11403659048 14254573810 28509147620 57018295240