Base | Representation |
---|---|
bin | 10111101110100101… |
… | …10111111001011111 |
3 | 1012212210101212011202 |
4 | 23313102313321133 |
5 | 202042121320440 |
6 | 5504021510115 |
7 | 630452322323 |
oct | 136722677137 |
9 | 35783355152 |
10 | 12738854495 |
11 | 5447829a24 |
12 | 257627233b |
13 | 1280259233 |
14 | 88bbcb983 |
15 | 4e856a615 |
hex | 2f74b7e5f |
12738854495 has 4 divisors (see below), whose sum is σ = 15286625400. Its totient is φ = 10191083592.
The previous prime is 12738854489. The next prime is 12738854501. The reversal of 12738854495 is 59445883721.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59445883721 = 7 ⋅8492269103.
It is an interprime number because it is at equal distance from previous prime (12738854489) and next prime (12738854501).
It is a cyclic number.
It is not a de Polignac number, because 12738854495 - 210 = 12738853471 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12738854495.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273885445 + ... + 1273885454.
It is an arithmetic number, because the mean of its divisors is an integer number (3821656350).
Almost surely, 212738854495 is an apocalyptic number.
12738854495 is a deficient number, since it is larger than the sum of its proper divisors (2547770905).
12738854495 is an equidigital number, since it uses as much as digits as its factorization.
12738854495 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2547770904.
The product of its digits is 9676800, while the sum is 56.
The spelling of 12738854495 in words is "twelve billion, seven hundred thirty-eight million, eight hundred fifty-four thousand, four hundred ninety-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •