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57172482 = 23219349479
BaseRepresentation
bin1101101000011…
…0001000000010
310222120122220100
43122012020002
5104114004412
65401223230
71262646423
oct332061002
9128518810
1057172482
112a2aa594
1217191b16
13bac9c93
14784364a
155044edc
hex3686202

57172482 has 48 divisors (see below), whose sum is σ = 131040000. Its totient is φ = 17965152.

The previous prime is 57172481. The next prime is 57172483. The reversal of 57172482 is 28427175.

57172482 is a `hidden beast` number, since 5 + 7 + 172 + 482 = 666.

It is an interprime number because it is at equal distance from previous prime (57172481) and next prime (57172483).

It is not an unprimeable number, because it can be changed into a prime (57172481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119119 + ... + 119597.

It is an arithmetic number, because the mean of its divisors is an integer number (2730000).

Almost surely, 257172482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57172482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65520000).

57172482 is an abundant number, since it is smaller than the sum of its proper divisors (73867518).

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

57172482 is a wasteful number, since it uses less digits than its factorization.

57172482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 852 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 57172482 is about 7561.2487063976. The cubic root of 57172482 is about 385.2379077156.

The spelling of 57172482 in words is "fifty-seven million, one hundred seventy-two thousand, four hundred eighty-two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 349 479 698 958 1047 1437 2094 2874 3141 4311 6282 6631 8622 9101 13262 18202 19893 27303 39786 54606 59679 81909 119358 163818 167171 334342 501513 1003026 1504539 3009078 3176249 6352498 9528747 19057494 28586241 57172482