Base | Representation |
---|---|
bin | 11100010111101011… |
… | …01011001000011110 |
3 | 1110022110211020021020 |
4 | 32023311223020132 |
5 | 222143114131324 |
6 | 10555205145010 |
7 | 1046303260005 |
oct | 161365531036 |
9 | 43273736236 |
10 | 15231005214 |
11 | 6506561717 |
12 | 2b509bb166 |
13 | 158966aa29 |
14 | a46b97c3c |
15 | 5e2245679 |
hex | 38bd6b21e |
15231005214 has 32 divisors (see below), whose sum is σ = 31795144704. Its totient is φ = 4854933600.
The previous prime is 15231005197. The next prime is 15231005243. The reversal of 15231005214 is 41250013251.
It is a happy number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 573939 + ... + 599889.
It is an arithmetic number, because the mean of its divisors is an integer number (993598272).
Almost surely, 215231005214 is an apocalyptic number.
15231005214 is an abundant number, since it is smaller than the sum of its proper divisors (16564139490).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15231005214 is a wasteful number, since it uses less digits than its factorization.
15231005214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30232.
The product of its (nonzero) digits is 1200, while the sum is 24.
Adding to 15231005214 its reverse (41250013251), we get a palindrome (56481018465).
The spelling of 15231005214 in words is "fifteen billion, two hundred thirty-one million, five thousand, two hundred fourteen".
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