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57869944 = 23112191313
BaseRepresentation
bin1101110011000…
…0011001111000
311000220002122021
43130300121320
5104303314234
65424204224
71301613016
oct334603170
9130802567
1057869944
112a736600
1217469674
13bcb2592
1479858b6
1551319b4
hex3730678

57869944 has 48 divisors (see below), whose sum is σ = 120274560. Its totient is φ = 26083200.

The previous prime is 57869897. The next prime is 57869951. The reversal of 57869944 is 44996875.

It is a happy number.

57869944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57869891 and 57869900.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 184732 + ... + 185044.

It is an arithmetic number, because the mean of its divisors is an integer number (2505720).

Almost surely, 257869944 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 57869944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60137280).

57869944 is an abundant number, since it is smaller than the sum of its proper divisors (62404616).

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

57869944 is a wasteful number, since it uses less digits than its factorization.

57869944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 517 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 57869944 is about 7607.2297191553. The cubic root of 57869944 is about 386.7981195281.

The spelling of 57869944 in words is "fifty-seven million, eight hundred sixty-nine thousand, nine hundred forty-four".

Divisors: 1 2 4 8 11 22 44 88 121 191 242 313 382 484 626 764 968 1252 1528 2101 2504 3443 4202 6886 8404 13772 16808 23111 27544 37873 46222 59783 75746 92444 119566 151492 184888 239132 302984 478264 657613 1315226 2630452 5260904 7233743 14467486 28934972 57869944