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57733906 = 2173166861
BaseRepresentation
bin1101110000111…
…1001100010010
311000122012000211
43130033030102
5104234441111
65421234334
71300505266
oct334171422
9130565024
1057733906
112a65337a
12174029aa
13bc65699
14794c0a6
155106521
hex370f312

57733906 has 8 divisors (see below), whose sum is σ = 87101964. Its totient is φ = 28699920.

The previous prime is 57733903. The next prime is 57733931. The reversal of 57733906 is 60933775.

57733906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43362225 + 14371681 = 6585^2 + 3791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×577339064 (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (57733903) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 83085 + ... + 83776.

Almost surely, 257733906 is an apocalyptic number.

57733906 is a deficient number, since it is larger than the sum of its proper divisors (29368058).

57733906 is a wasteful number, since it uses less digits than its factorization.

57733906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167036.

The product of its (nonzero) digits is 119070, while the sum is 40.

The square root of 57733906 is about 7598.2830955420. The cubic root of 57733906 is about 386.4947926512.

The spelling of 57733906 in words is "fifty-seven million, seven hundred thirty-three thousand, nine hundred six".

Divisors: 1 2 173 346 166861 333722 28866953 57733906