Base | Representation |
---|---|
bin | 11100111100110100… |
… | …00011000011000101 |
3 | 1111010012000100021100 |
4 | 32132122003003011 |
5 | 223312341431440 |
6 | 11050134210313 |
7 | 1060105220154 |
oct | 163632030305 |
9 | 44105010240 |
10 | 15542530245 |
11 | 6656398020 |
12 | 30191b3999 |
13 | 1609072578 |
14 | a762cb59b |
15 | 60e77e230 |
hex | 39e6830c5 |
15542530245 has 96 divisors (see below), whose sum is σ = 31959982080. Its totient is φ = 6900664320.
The previous prime is 15542530207. The next prime is 15542530253. The reversal of 15542530245 is 54203524551.
It is not a de Polignac number, because 15542530245 - 230 = 14468788421 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 286396 + ... + 336314.
It is an arithmetic number, because the mean of its divisors is an integer number (332916480).
Almost surely, 215542530245 is an apocalyptic number.
15542530245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
15542530245 is an abundant number, since it is smaller than the sum of its proper divisors (16417451835).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15542530245 is a wasteful number, since it uses less digits than its factorization.
15542530245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49995 (or 49992 counting only the distinct ones).
The product of its (nonzero) digits is 120000, while the sum is 36.
The spelling of 15542530245 in words is "fifteen billion, five hundred forty-two million, five hundred thirty thousand, two hundred forty-five".
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