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57641109 = 3127151289
BaseRepresentation
bin1101101111100…
…0100010010101
311000110110201220
43123320202111
5104224003414
65415240553
71266640611
oct333704225
9130413656
1057641109
112a59a689
1217379159
13bc32386
147926341
1550d8ca9
hex36f8895

57641109 has 8 divisors (see below), whose sum is σ = 77460480. Its totient is φ = 38124576.

The previous prime is 57641107. The next prime is 57641119. The reversal of 57641109 is 90114675.

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

It is not a de Polignac number, because 57641109 - 21 = 57641107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57641109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57641107) 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, 75264 + ... + 76025.

It is an arithmetic number, because the mean of its divisors is an integer number (9682560).

Almost surely, 257641109 is an apocalyptic number.

It is an amenable number.

57641109 is a deficient number, since it is larger than the sum of its proper divisors (19819371).

57641109 is a wasteful number, since it uses less digits than its factorization.

57641109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151419.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 57641109 is about 7592.1741945243. The cubic root of 57641109 is about 386.2876076954.

The spelling of 57641109 in words is "fifty-seven million, six hundred forty-one thousand, one hundred nine".

Divisors: 1 3 127 381 151289 453867 19213703 57641109