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57233242 = 2112713331
BaseRepresentation
bin1101101001010…
…0111101011010
310222200202020201
43122110331122
5104122430432
65402412414
71263321523
oct332247532
9128622221
1057233242
112a341200
121720110a
13bb1b831
14785b84a
155057ee7
hex3694f5a

57233242 has 24 divisors (see below), whose sum is σ = 95721696. Its totient is φ = 25641000.

The previous prime is 57233233. The next prime is 57233243. The reversal of 57233242 is 24233275.

It is a self number, because there is not a number n which added to its sum of digits gives 57233242.

It is not an unprimeable number, because it can be changed into a prime (57233243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15517 + ... + 18847.

It is an arithmetic number, because the mean of its divisors is an integer number (3988404).

Almost surely, 257233242 is an apocalyptic number.

57233242 is a deficient number, since it is larger than the sum of its proper divisors (38488454).

57233242 is a wasteful number, since it uses less digits than its factorization.

57233242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426 (or 3415 counting only the distinct ones).

The product of its digits is 10080, while the sum is 28.

The square root of 57233242 is about 7565.2654943498. The cubic root of 57233242 is about 385.3743298043.

It can be divided in two parts, 57233 and 242, that added together give a palindrome (57475).

The spelling of 57233242 in words is "fifty-seven million, two hundred thirty-three thousand, two hundred forty-two".

Divisors: 1 2 11 22 71 121 142 242 781 1562 3331 6662 8591 17182 36641 73282 236501 403051 473002 806102 2601511 5203022 28616621 57233242