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57344028 = 22371096263
BaseRepresentation
bin1101101011000…
…0000000011100
310222220101012220
43122300000130
5104140002103
65405025340
71264262520
oct332600034
9128811186
1057344028
112a407465
1217255250
13bb5a0a1
147889d80
15507ac53
hex36b001c

57344028 has 48 divisors (see below), whose sum is σ = 154344960. Its totient is φ = 16231104.

The previous prime is 57344011. The next prime is 57344029. The reversal of 57344028 is 82044375.

It is a self number, because there is not a number n which added to its sum of digits gives 57344028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57344029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6025 + ... + 12287.

It is an arithmetic number, because the mean of its divisors is an integer number (3215520).

Almost surely, 257344028 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 57344028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77172480).

57344028 is an abundant number, since it is smaller than the sum of its proper divisors (97000932).

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

57344028 is a wasteful number, since it uses less digits than its factorization.

57344028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6386 (or 6384 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 57344028 is about 7572.5839711422. The cubic root of 57344028 is about 385.6228250321.

The spelling of 57344028 in words is "fifty-seven million, three hundred forty-four thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 109 218 327 436 654 763 1308 1526 2289 3052 4578 6263 9156 12526 18789 25052 37578 43841 75156 87682 131523 175364 263046 526092 682667 1365334 2048001 2730668 4096002 4778669 8192004 9557338 14336007 19114676 28672014 57344028