Base | Representation |
---|---|
bin | 11000110101001111… |
… | …01001001111001111 |
3 | 1021102002120110202111 |
4 | 30122213221033033 |
5 | 204300331031111 |
6 | 10042512204451 |
7 | 651236616601 |
oct | 143247511717 |
9 | 37362513674 |
10 | 13331502031 |
11 | 5721315881 |
12 | 2700839727 |
13 | 1345c7c353 |
14 | 9067bd171 |
15 | 5305d4a21 |
hex | 31a9e93cf |
13331502031 has 8 divisors (see below), whose sum is σ = 13360610304. Its totient is φ = 13302427320.
The previous prime is 13331502011. The next prime is 13331502049. The reversal of 13331502031 is 13020513331.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13331502031 - 213 = 13331493839 is a prime.
It is a super-2 number, since 2×133315020312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13331501993 and 13331502011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13331502011) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888070 + ... + 902956.
It is an arithmetic number, because the mean of its divisors is an integer number (1670076288).
Almost surely, 213331502031 is an apocalyptic number.
13331502031 is a deficient number, since it is larger than the sum of its proper divisors (29108273).
13331502031 is an equidigital number, since it uses as much as digits as its factorization.
13331502031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16781.
The product of its (nonzero) digits is 810, while the sum is 22.
The spelling of 13331502031 in words is "thirteen billion, three hundred thirty-one million, five hundred two thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •