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57842169 = 37112411039
BaseRepresentation
bin1101110010100…
…1100111111001
311000211200112120
43130221213321
5104301422134
65423431453
71301436030
oct334514771
9130750476
1057842169
112a717750
1217455589
13bca2a48
147979717
155128649
hex37299f9

57842169 has 32 divisors (see below), whose sum is σ = 96645120. Its totient is φ = 29894400.

The previous prime is 57842159. The next prime is 57842173. The reversal of 57842169 is 96124875.

It is not a de Polignac number, because 57842169 - 29 = 57841657 is a prime.

It is a super-2 number, since 2×578421692 = 6691433029249122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57842169.

It is not an unprimeable number, because it can be changed into a prime (57842149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55152 + ... + 56190.

It is an arithmetic number, because the mean of its divisors is an integer number (3020160).

Almost surely, 257842169 is an apocalyptic number.

It is an amenable number.

57842169 is a deficient number, since it is larger than the sum of its proper divisors (38802951).

57842169 is a wasteful number, since it uses less digits than its factorization.

57842169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301.

The product of its digits is 120960, while the sum is 42.

The square root of 57842169 is about 7605.4039340458. The cubic root of 57842169 is about 386.7362276590.

The spelling of 57842169 in words is "fifty-seven million, eight hundred forty-two thousand, one hundred sixty-nine".

Divisors: 1 3 7 11 21 33 77 231 241 723 1039 1687 2651 3117 5061 7273 7953 11429 18557 21819 34287 55671 80003 240009 250399 751197 1752793 2754389 5258379 8263167 19280723 57842169