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57133641 = 319044547
BaseRepresentation
bin1101100111110…
…0101001001001
310222111200121210
43121330221021
5104111234031
65400323333
71262425245
oct331745111
9128450553
1057133641
112a283394
1217173549
13bab53b6
147833425
155038746
hex367ca49

57133641 has 4 divisors (see below), whose sum is σ = 76178192. Its totient is φ = 38089092.

The previous prime is 57133607. The next prime is 57133649. The reversal of 57133641 is 14633175.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 57133641 - 26 = 57133577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57133599 and 57133608.

It is not an unprimeable number, because it can be changed into a prime (57133649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9522271 + ... + 9522276.

It is an arithmetic number, because the mean of its divisors is an integer number (19044548).

Almost surely, 257133641 is an apocalyptic number.

It is an amenable number.

57133641 is a deficient number, since it is larger than the sum of its proper divisors (19044551).

57133641 is a wasteful number, since it uses less digits than its factorization.

57133641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19044550.

The product of its digits is 7560, while the sum is 30.

The square root of 57133641 is about 7558.6798450523. The cubic root of 57133641 is about 385.1506488644.

The spelling of 57133641 in words is "fifty-seven million, one hundred thirty-three thousand, six hundred forty-one".

Divisors: 1 3 19044547 57133641