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57513616 = 2423373419
BaseRepresentation
bin1101101101100…
…1011010010000
311000012222211221
43123121122100
5104210413431
65412414424
71265600116
oct333313220
9130188757
1057513616
112a512916
1217317414
13bbb9334
1478d1ab6
1550b1111
hex36d9690

57513616 has 40 divisors (see below), whose sum is σ = 116867520. Its totient is φ = 27367296.

The previous prime is 57513607. The next prime is 57513619. The reversal of 57513616 is 61631575.

57513616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×575136163 (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (34) 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 (57513619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137055 + ... + 137473.

It is an arithmetic number, because the mean of its divisors is an integer number (2921688).

Almost surely, 257513616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57513616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58433760).

57513616 is an abundant number, since it is smaller than the sum of its proper divisors (59353904).

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

57513616 is a wasteful number, since it uses less digits than its factorization.

57513616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 817 counting only the distinct ones).

The product of its digits is 18900, while the sum is 34.

The square root of 57513616 is about 7583.7732033599. The cubic root of 57513616 is about 386.0025951305.

The spelling of 57513616 in words is "fifty-seven million, five hundred thirteen thousand, six hundred sixteen".

Divisors: 1 2 4 8 16 23 46 92 184 368 373 419 746 838 1492 1676 2984 3352 5968 6704 8579 9637 17158 19274 34316 38548 68632 77096 137264 154192 156287 312574 625148 1250296 2500592 3594601 7189202 14378404 28756808 57513616