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57003672 = 23311263821
BaseRepresentation
bin1101100101110…
…0111010011000
310222021002100010
43121130322120
5104043104142
65353441520
71261344315
oct331347230
9128232303
1057003672
112a1a4780
12171102a0
13ba6b1ab
1477dbd0c
15500ee9c
hex365ce98

57003672 has 64 divisors (see below), whose sum is σ = 156245760. Its totient is φ = 17187200.

The previous prime is 57003649. The next prime is 57003679. The reversal of 57003672 is 27630075.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57003679) 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, 69022 + ... + 69842.

It is an arithmetic number, because the mean of its divisors is an integer number (2441340).

Almost surely, 257003672 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 57003672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78122880).

57003672 is an abundant number, since it is smaller than the sum of its proper divisors (99242088).

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

57003672 is a wasteful number, since it uses less digits than its factorization.

57003672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 57003672 is about 7550.0776154951. The cubic root of 57003672 is about 384.8583771000.

It can be divided in two parts, 57003 and 672, that added together give a palindrome (57675).

The spelling of 57003672 in words is "fifty-seven million, three thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 263 264 526 789 821 1052 1578 1642 2104 2463 2893 3156 3284 4926 5786 6312 6568 8679 9031 9852 11572 17358 18062 19704 23144 27093 34716 36124 54186 69432 72248 108372 215923 216744 431846 647769 863692 1295538 1727384 2375153 2591076 4750306 5182152 7125459 9500612 14250918 19001224 28501836 57003672