Base | Representation |
---|---|
bin | 1000111111100… |
… | …01001101111101 |
3 | 12020221121000012 |
4 | 10133301031331 |
5 | 123302440200 |
6 | 11252513005 |
7 | 1604126504 |
oct | 437611575 |
9 | 166847005 |
10 | 75436925 |
11 | 39644973 |
12 | 2131b765 |
13 | 12823445 |
14 | a03983b |
15 | 6951a35 |
hex | 47f137d |
75436925 has 12 divisors (see below), whose sum is σ = 95824596. Its totient is φ = 58876800.
The previous prime is 75436913. The next prime is 75436937. The reversal of 75436925 is 52963457.
It is an interprime number because it is at equal distance from previous prime (75436913) and next prime (75436937).
It can be written as a sum of positive squares in 6 ways, for example, as 6911641 + 68525284 = 2629^2 + 8278^2 .
It is not a de Polignac number, because 75436925 - 210 = 75435901 is a prime.
It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35774 + ... + 37823.
It is an arithmetic number, because the mean of its divisors is an integer number (7985383).
Almost surely, 275436925 is an apocalyptic number.
It is an amenable number.
75436925 is a deficient number, since it is larger than the sum of its proper divisors (20387671).
75436925 is a wasteful number, since it uses less digits than its factorization.
75436925 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73648 (or 73643 counting only the distinct ones).
The product of its digits is 226800, while the sum is 41.
The square root of 75436925 is about 8685.4432817214. The cubic root of 75436925 is about 422.5336737747.
The spelling of 75436925 in words is "seventy-five million, four hundred thirty-six thousand, nine hundred twenty-five".
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