Base | Representation |
---|---|
bin | 11100010101001110… |
… | …10001100011101111 |
3 | 1110021001011002020200 |
4 | 32022213101203233 |
5 | 222122334000411 |
6 | 10553152444543 |
7 | 1045633501461 |
oct | 161247214357 |
9 | 43231132220 |
10 | 15210453231 |
11 | 64a59a4706 |
12 | 2b45b49753 |
13 | 15853232ac |
14 | a44168131 |
15 | 5e0535e56 |
hex | 38a9d18ef |
15210453231 has 12 divisors (see below), whose sum is σ = 23263046352. Its totient is φ = 9543813696.
The previous prime is 15210453227. The next prime is 15210453263. The reversal of 15210453231 is 13235401251.
It is not a de Polignac number, because 15210453231 - 22 = 15210453227 is a prime.
It is a super-2 number, since 2×152104532312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 15210453195 and 15210453204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15210453131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49707211 + ... + 49707516.
It is an arithmetic number, because the mean of its divisors is an integer number (1938587196).
Almost surely, 215210453231 is an apocalyptic number.
15210453231 is a deficient number, since it is larger than the sum of its proper divisors (8052593121).
15210453231 is a wasteful number, since it uses less digits than its factorization.
15210453231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 99414750 (or 99414747 counting only the distinct ones).
The product of its (nonzero) digits is 3600, while the sum is 27.
Adding to 15210453231 its reverse (13235401251), we get a palindrome (28445854482).
The spelling of 15210453231 in words is "fifteen billion, two hundred ten million, four hundred fifty-three thousand, two hundred thirty-one".
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