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57790434 = 2313740903
BaseRepresentation
bin1101110001110…
…0111111100010
311000202001120110
43130130333202
5104243243214
65422352150
71301132142
oct334347742
9130661513
1057790434
112a691899
121742b656
13bc85330
147964922
155118159
hex371cfe2

57790434 has 16 divisors (see below), whose sum is σ = 124471872. Its totient is φ = 17781648.

The previous prime is 57790433. The next prime is 57790471. The reversal of 57790434 is 43409775.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57790392 and 57790401.

It is not an unprimeable number, because it can be changed into a prime (57790433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370374 + ... + 370529.

It is an arithmetic number, because the mean of its divisors is an integer number (7779492).

Almost surely, 257790434 is an apocalyptic number.

57790434 is an abundant number, since it is smaller than the sum of its proper divisors (66681438).

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

57790434 is a wasteful number, since it uses less digits than its factorization.

57790434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740921.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 57790434 is about 7602.0019731647. The cubic root of 57790434 is about 386.6208921570.

The spelling of 57790434 in words is "fifty-seven million, seven hundred ninety thousand, four hundred thirty-four".

Divisors: 1 2 3 6 13 26 39 78 740903 1481806 2222709 4445418 9631739 19263478 28895217 57790434