Base | Representation |
---|---|
bin | 11000111011111110… |
… | …01010010000000111 |
3 | 1021120000212202221202 |
4 | 30131333022100013 |
5 | 204404311420330 |
6 | 10052251133115 |
7 | 652524051524 |
oct | 143577122007 |
9 | 37500782852 |
10 | 13387998215 |
11 | 57501a3239 |
12 | 271774419b |
13 | 13548a0547 |
14 | 9100c814b |
15 | 535544445 |
hex | 31dfca407 |
13387998215 has 8 divisors (see below), whose sum is σ = 16911155760. Its totient is φ = 10146693312.
The previous prime is 13387998209. The next prime is 13387998233. The reversal of 13387998215 is 51289978331.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13387998215 - 224 = 13371220999 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70463054 + ... + 70463243.
It is an arithmetic number, because the mean of its divisors is an integer number (2113894470).
Almost surely, 213387998215 is an apocalyptic number.
13387998215 is a deficient number, since it is larger than the sum of its proper divisors (3523157545).
13387998215 is a wasteful number, since it uses less digits than its factorization.
13387998215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 140926321.
The product of its digits is 3265920, while the sum is 56.
The spelling of 13387998215 in words is "thirteen billion, three hundred eighty-seven million, nine hundred ninety-eight thousand, two hundred fifteen".
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