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57444049098 = 2337913465553
BaseRepresentation
bin110101011111111011…
…101010000011001010
312111021101010001021000
4311133323222003022
51420121134032343
642220041155430
74102342234542
oct653773520312
9174241101230
1057444049098
11223a8739347
12b171a8bb76
13555606aac7
142acd23a322
151763173ed3
hexd5feea0ca

57444049098 has 32 divisors (see below), whose sum is σ = 129269318400. Its totient is φ = 18905635008.

The previous prime is 57444049093. The next prime is 57444049123. The reversal of 57444049098 is 89094044475.

57444049098 is a `hidden beast` number, since 5 + 74 + 440 + 49 + 0 + 98 = 666.

It is a super-2 number, since 2×574440490982 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (57444049093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6728511 + ... + 6737042.

It is an arithmetic number, because the mean of its divisors is an integer number (4039666200).

Almost surely, 257444049098 is an apocalyptic number.

57444049098 is an abundant number, since it is smaller than the sum of its proper divisors (71825269302).

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

57444049098 is a wasteful number, since it uses less digits than its factorization.

57444049098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13465643 (or 13465637 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 57444049098 in words is "fifty-seven billion, four hundred forty-four million, forty-nine thousand, ninety-eight".

Divisors: 1 2 3 6 9 18 27 54 79 158 237 474 711 1422 2133 4266 13465553 26931106 40396659 80793318 121189977 242379954 363569931 727139862 1063778687 2127557374 3191336061 6382672122 9574008183 19148016366 28722024549 57444049098