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75289044 = 22343532753
BaseRepresentation
bin1000111110011…
…01000111010100
312020200002011010
410133031013110
5123233222134
611245412220
71602642405
oct437150724
9166602133
1075289044
1139553856
122126a070
13127a103c
149ddb9ac
156922ce9
hex47cd1d4

75289044 has 48 divisors (see below), whose sum is σ = 183218112. Its totient is φ = 24041472.

The previous prime is 75289021. The next prime is 75289069. The reversal of 75289044 is 44098257.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 75288993 and 75289011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25972 + ... + 28724.

It is an arithmetic number, because the mean of its divisors is an integer number (3817044).

Almost surely, 275289044 is an apocalyptic number.

It is an amenable number.

75289044 is an abundant number, since it is smaller than the sum of its proper divisors (107929068).

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

75289044 is a wasteful number, since it uses less digits than its factorization.

75289044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856 (or 2854 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 75289044 is about 8676.9259533547. The cubic root of 75289044 is about 422.2573918483.

The spelling of 75289044 in words is "seventy-five million, two hundred eighty-nine thousand, forty-four".

Divisors: 1 2 3 4 6 12 43 53 86 106 129 159 172 212 258 318 516 636 2279 2753 4558 5506 6837 8259 9116 11012 13674 16518 27348 33036 118379 145909 236758 291818 355137 437727 473516 583636 710274 875454 1420548 1750908 6274087 12548174 18822261 25096348 37644522 75289044