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57244 = 22111301
BaseRepresentation
bin1101111110011100
32220112011
431332130
53312434
61121004
7325615
oct157634
986464
1057244
113a010
1229164
1320095
1416c0c
1511e64
hexdf9c

57244 has 12 divisors (see below), whose sum is σ = 109368. Its totient is φ = 26000.

The previous prime is 57241. The next prime is 57251. The reversal of 57244 is 44275.

It can be divided in two parts, 572 and 44, that added together give a palindrome (616).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a fibodiv number, since the Fibonacci-like sequence with seeds 572 and 44 contains 57244 itself.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607 + ... + 694.

It is an arithmetic number, because the mean of its divisors is an integer number (9114).

257244 is an apocalyptic number.

It is an amenable number.

57244 is a deficient number, since it is larger than the sum of its proper divisors (52124).

57244 is a wasteful number, since it uses less digits than its factorization.

57244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316 (or 1314 counting only the distinct ones).

The product of its digits is 1120, while the sum is 22.

The square root of 57244 is about 239.2571838002. The cubic root of 57244 is about 38.5398474265.

The spelling of 57244 in words is "fifty-seven thousand, two hundred forty-four".

Divisors: 1 2 4 11 22 44 1301 2602 5204 14311 28622 57244