Base | Representation |
---|---|
bin | 111001011010011111… |
… | …0101111100001111100 |
3 | 102210020200002211200022 |
4 | 1302310332233201330 |
5 | 4010002112241110 |
6 | 132350252551312 |
7 | 11623242604214 |
oct | 1626476574174 |
9 | 383220084608 |
10 | 123295430780 |
11 | 48320069035 |
12 | 1ba8b482538 |
13 | b81bb59a02 |
14 | 5d78c93244 |
15 | 3319454755 |
hex | 1cb4faf87c |
123295430780 has 48 divisors (see below), whose sum is σ = 265984380480. Its totient is φ = 47973316608.
The previous prime is 123295430689. The next prime is 123295430809. The reversal of 123295430780 is 87034592321.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3321161 + ... + 3358079.
It is an arithmetic number, because the mean of its divisors is an integer number (5541341260).
Almost surely, 2123295430780 is an apocalyptic number.
123295430780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
123295430780 is an abundant number, since it is smaller than the sum of its proper divisors (142688949700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123295430780 is a wasteful number, since it uses less digits than its factorization.
123295430780 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41478 (or 41476 counting only the distinct ones).
The product of its (nonzero) digits is 362880, while the sum is 44.
The spelling of 123295430780 in words is "one hundred twenty-three billion, two hundred ninety-five million, four hundred thirty thousand, seven hundred eighty".
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