Base | Representation |
---|---|
bin | 11100010111101100… |
… | …01100010101010000 |
3 | 1110022111002010210202 |
4 | 32023312030111100 |
5 | 222143133004300 |
6 | 10555212114332 |
7 | 1046304364322 |
oct | 161366142520 |
9 | 43274063722 |
10 | 15231141200 |
11 | 6506644900 |
12 | 2b50a659a8 |
13 | 15896b78b2 |
14 | a46bd1612 |
15 | 5e2270ad5 |
hex | 38bd8c550 |
15231141200 has 90 divisors (see below), whose sum is σ = 40221984222. Its totient is φ = 5538579200.
The previous prime is 15231141199. The next prime is 15231141203. The reversal of 15231141200 is 214113251.
It can be written as a sum of positive squares in 3 ways, for example, as 171924544 + 15059216656 = 13112^2 + 122716^2 .
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15231141203) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 108947 + ... + 205746.
Almost surely, 215231141200 is an apocalyptic number.
15231141200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
15231141200 is an abundant number, since it is smaller than the sum of its proper divisors (24990843022).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15231141200 is a wasteful number, since it uses less digits than its factorization.
15231141200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 314733 (or 314711 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 20.
Adding to 15231141200 its reverse (214113251), we get a palindrome (15445254451).
The spelling of 15231141200 in words is "fifteen billion, two hundred thirty-one million, one hundred forty-one thousand, two hundred".
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