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57152073 = 3114153797
BaseRepresentation
bin1101101000000…
…1001001001001
310222112121220110
43122001021021
5104112331243
65400544533
71262533056
oct332011111
9128477813
1057152073
112a296220
1217182149
13bac08c4
14783a02d
15503de33
hex3681249

57152073 has 32 divisors (see below), whose sum is σ = 86873472. Its totient is φ = 33113600.

The previous prime is 57152023. The next prime is 57152077. The reversal of 57152073 is 37025175.

It is a cyclic number.

It is not a de Polignac number, because 57152073 - 217 = 57021001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57152073.

It is not an unprimeable number, because it can be changed into a prime (57152077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71311 + ... + 72107.

It is an arithmetic number, because the mean of its divisors is an integer number (2714796).

Almost surely, 257152073 is an apocalyptic number.

57152073 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

57152073 is a deficient number, since it is larger than the sum of its proper divisors (29721399).

57152073 is a wasteful number, since it uses less digits than its factorization.

57152073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 57152073 is about 7559.8990072619. The cubic root of 57152073 is about 385.1920624890.

The spelling of 57152073 in words is "fifty-seven million, one hundred fifty-two thousand, seventy-three".

Divisors: 1 3 11 33 41 53 123 159 451 583 797 1353 1749 2173 2391 6519 8767 23903 26301 32677 42241 71709 98031 126723 359447 464651 1078341 1393953 1731881 5195643 19050691 57152073