Base | Representation |
---|---|
bin | 1100011011011… |
… | …1100000100111 |
3 | 10122002120111100 |
4 | 3012313200213 |
5 | 101321210004 |
6 | 5101211143 |
7 | 1202053662 |
oct | 306674047 |
9 | 118076440 |
10 | 52131879 |
11 | 274774a8 |
12 | 15560ab3 |
13 | aa53887 |
14 | 6cd06d9 |
15 | 489b739 |
hex | 31b7827 |
52131879 has 12 divisors (see below), whose sum is σ = 77898600. Its totient is φ = 33555984.
The previous prime is 52131847. The next prime is 52131907. The reversal of 52131879 is 97813125.
It is not a de Polignac number, because 52131879 - 25 = 52131847 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (52131479) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99609 + ... + 100130.
It is an arithmetic number, because the mean of its divisors is an integer number (6491550).
Almost surely, 252131879 is an apocalyptic number.
52131879 is a deficient number, since it is larger than the sum of its proper divisors (25766721).
52131879 is a wasteful number, since it uses less digits than its factorization.
52131879 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 199774 (or 199771 counting only the distinct ones).
The product of its digits is 15120, while the sum is 36.
The square root of 52131879 is about 7220.2409239581. The cubic root of 52131879 is about 373.5663876659.
It can be divided in two parts, 521 and 31879, that added together give a square (32400 = 1802).
The spelling of 52131879 in words is "fifty-two million, one hundred thirty-one thousand, eight hundred seventy-nine".
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