Base | Representation |
---|---|
bin | 11101000101110101… |
… | …001011111010011001 |
3 | 2222121220200112221101 |
4 | 131011311023322121 |
5 | 1002433000411101 |
6 | 22203315111401 |
7 | 2154031343506 |
oct | 350565137231 |
9 | 88556615841 |
10 | 31236341401 |
11 | 1227a111691 |
12 | 6078ba2561 |
13 | 2c3a571a65 |
14 | 17247184ad |
15 | c2c442401 |
hex | 745d4be99 |
31236341401 has 4 divisors (see below), whose sum is σ = 31250220304. Its totient is φ = 31222462500.
The previous prime is 31236341369. The next prime is 31236341413. The reversal of 31236341401 is 10414363213.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10414363213 = 89 ⋅117015317.
It is a cyclic number.
It is not a de Polignac number, because 31236341401 - 25 = 31236341369 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 31236341401.
It is not an unprimeable number, because it can be changed into a prime (31236341491) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6936075 + ... + 6940576.
It is an arithmetic number, because the mean of its divisors is an integer number (7812555076).
Almost surely, 231236341401 is an apocalyptic number.
It is an amenable number.
31236341401 is a deficient number, since it is larger than the sum of its proper divisors (13878903).
31236341401 is a wasteful number, since it uses less digits than its factorization.
31236341401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13878902.
The product of its (nonzero) digits is 5184, while the sum is 28.
The spelling of 31236341401 in words is "thirty-one billion, two hundred thirty-six million, three hundred forty-one thousand, four hundred one".
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