Base | Representation |
---|---|
bin | 10110100010110010… |
… | …11100010101101101 |
3 | 1011020111000020222010 |
4 | 23101121130111231 |
5 | 144241334324123 |
6 | 5320550111433 |
7 | 605632106640 |
oct | 132131342555 |
9 | 34214006863 |
10 | 12103042413 |
11 | 51509409a0 |
12 | 241934b579 |
13 | 11ab602077 |
14 | 82b5a1a57 |
15 | 4ac826993 |
hex | 2d165c56d |
12103042413 has 64 divisors (see below), whose sum is σ = 20857503744. Its totient is φ = 6058368000.
The previous prime is 12103042397. The next prime is 12103042433. The reversal of 12103042413 is 31424030121.
It is not a de Polignac number, because 12103042413 - 24 = 12103042397 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 12103042413.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12103042433) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1722295 + ... + 1729307.
It is an arithmetic number, because the mean of its divisors is an integer number (325898496).
Almost surely, 212103042413 is an apocalyptic number.
It is an amenable number.
12103042413 is a deficient number, since it is larger than the sum of its proper divisors (8754461331).
12103042413 is a wasteful number, since it uses less digits than its factorization.
12103042413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7306.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 12103042413 its reverse (31424030121), we get a palindrome (43527072534).
The spelling of 12103042413 in words is "twelve billion, one hundred three million, forty-two thousand, four hundred thirteen".
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