Base | Representation |
---|---|
bin | 1100100111011… |
… | …0011101000111 |
3 | 10200120022100110 |
4 | 3021312131013 |
5 | 102021221431 |
6 | 5130044103 |
7 | 1211522124 |
oct | 311663507 |
9 | 120508313 |
10 | 52913991 |
11 | 27961079 |
12 | 15879633 |
13 | ac68870 |
14 | 705574b |
15 | 49a3346 |
hex | 3276747 |
52913991 has 16 divisors (see below), whose sum is σ = 76227200. Its totient is φ = 32456160.
The previous prime is 52913989. The next prime is 52914079. The reversal of 52913991 is 19931925.
It is not a de Polignac number, because 52913991 - 21 = 52913989 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (52913191) 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, 10860 + ... + 14958.
It is an arithmetic number, because the mean of its divisors is an integer number (4764200).
Almost surely, 252913991 is an apocalyptic number.
52913991 is a deficient number, since it is larger than the sum of its proper divisors (23313209).
52913991 is a wasteful number, since it uses less digits than its factorization.
52913991 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4446.
The product of its digits is 21870, while the sum is 39.
The square root of 52913991 is about 7274.2003684254. The cubic root of 52913991 is about 375.4252739743.
The spelling of 52913991 in words is "fifty-two million, nine hundred thirteen thousand, nine hundred ninety-one".
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