Base | Representation |
---|---|
bin | 10111010010111111… |
… | …01111110111110101 |
3 | 1012021122210010121111 |
4 | 23221133233313311 |
5 | 201103340122334 |
6 | 5425031515021 |
7 | 621641464540 |
oct | 135137576765 |
9 | 35248703544 |
10 | 12507348469 |
11 | 5339088030 |
12 | 2510828a71 |
13 | 12442c0615 |
14 | 869167857 |
15 | 4d308b064 |
hex | 2e97efdf5 |
12507348469 has 16 divisors (see below), whose sum is σ = 15617520000. Its totient is φ = 9731021760.
The previous prime is 12507348461. The next prime is 12507348473. The reversal of 12507348469 is 96484370521.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 12507348469 - 23 = 12507348461 is a prime.
It is a super-2 number, since 2×125073484692 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12507348461) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74094 + ... + 174655.
It is an arithmetic number, because the mean of its divisors is an integer number (976095000).
It is a 1-persistent number, because it is pandigital, but 2⋅12507348469 = 25014696938 is not.
Almost surely, 212507348469 is an apocalyptic number.
It is an amenable number.
12507348469 is a deficient number, since it is larger than the sum of its proper divisors (3110171531).
12507348469 is a wasteful number, since it uses less digits than its factorization.
12507348469 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 249420.
The product of its (nonzero) digits is 1451520, while the sum is 49.
The spelling of 12507348469 in words is "twelve billion, five hundred seven million, three hundred forty-eight thousand, four hundred sixty-nine".
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