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57233530 = 25291511307
BaseRepresentation
bin1101101001010…
…1000001111010
310222200202122101
43122111001322
5104122433110
65402414014
71263322414
oct332250172
9128622571
1057233530
112a341442
121720130a
13bb1b9c3
14785b9b4
15505813a
hex369507a

57233530 has 32 divisors (see below), whose sum is σ = 107360640. Its totient is φ = 21940800.

The previous prime is 57233513. The next prime is 57233549. The reversal of 57233530 is 3533275.

It is a happy number.

57233530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43137 + ... + 44443.

It is an arithmetic number, because the mean of its divisors is an integer number (3355020).

Almost surely, 257233530 is an apocalyptic number.

57233530 is a deficient number, since it is larger than the sum of its proper divisors (50127110).

57233530 is a wasteful number, since it uses less digits than its factorization.

57233530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494.

The product of its (nonzero) digits is 9450, while the sum is 28.

The square root of 57233530 is about 7565.2845286876. The cubic root of 57233530 is about 385.3749762096.

The spelling of 57233530 in words is "fifty-seven million, two hundred thirty-three thousand, five hundred thirty".

Divisors: 1 2 5 10 29 58 145 151 290 302 755 1307 1510 2614 4379 6535 8758 13070 21895 37903 43790 75806 189515 197357 379030 394714 986785 1973570 5723353 11446706 28616765 57233530