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57148092 = 2234176383
BaseRepresentation
bin1101101000000…
…0001010111100
310222112102110000
43122000022330
5104112214332
65400514300
71262515341
oct332001274
9128472400
1057148092
112a293231
121717b990
13babbb51
1478387c8
15503cb7c
hex36802bc

57148092 has 30 divisors (see below), whose sum is σ = 149397248. Its totient is φ = 19049256.

The previous prime is 57148087. The next prime is 57148093. The reversal of 57148092 is 29084175.

57148092 is a `hidden beast` number, since 571 + 4 + 80 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57148093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 87868 + ... + 88515.

Almost surely, 257148092 is an apocalyptic number.

It is an amenable number.

57148092 is an abundant number, since it is smaller than the sum of its proper divisors (92249156).

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

57148092 is a wasteful number, since it uses less digits than its factorization.

57148092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176399 (or 176388 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 57148092 is about 7559.6357055086. The cubic root of 57148092 is about 385.1831186010.

The spelling of 57148092 in words is "fifty-seven million, one hundred forty-eight thousand, ninety-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 176383 352766 529149 705532 1058298 1587447 2116596 3174894 4762341 6349788 9524682 14287023 19049364 28574046 57148092