Base | Representation |
---|---|
bin | 11011111100101000… |
… | …10001011001001111 |
3 | 1102201122221112212122 |
4 | 31332110101121033 |
5 | 221212030121411 |
6 | 10520502523155 |
7 | 1040550062435 |
oct | 157624213117 |
9 | 42648845778 |
10 | 15004145231 |
11 | 63aa4a3429 |
12 | 2aa8a364bb |
13 | 155166aa5a |
14 | a249c2d55 |
15 | 5cc3829db |
hex | 37e51164f |
15004145231 has 4 divisors (see below), whose sum is σ = 15194071200. Its totient is φ = 14814219264.
The previous prime is 15004145213. The next prime is 15004145237. The reversal of 15004145231 is 13254140051.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13254140051 = 967 ⋅13706453.
It is a cyclic number.
It is not a de Polignac number, because 15004145231 - 230 = 13930403407 is a prime.
It is a super-3 number, since 3×150041452313 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
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 15004145231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15004145237) 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 3 ways as a sum of consecutive naturals, for example, 94962866 + ... + 94963023.
It is an arithmetic number, because the mean of its divisors is an integer number (3798517800).
Almost surely, 215004145231 is an apocalyptic number.
15004145231 is a deficient number, since it is larger than the sum of its proper divisors (189925969).
15004145231 is an equidigital number, since it uses as much as digits as its factorization.
15004145231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 189925968.
The product of its (nonzero) digits is 2400, while the sum is 26.
Adding to 15004145231 its reverse (13254140051), we get a palindrome (28258285282).
The spelling of 15004145231 in words is "fifteen billion, four million, one hundred forty-five thousand, two hundred thirty-one".
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