Base | Representation |
---|---|
bin | 10111110011010111… |
… | …10000000001111100 |
3 | 1012222120210220211211 |
4 | 23321223300001330 |
5 | 202132401232200 |
6 | 5512012454204 |
7 | 631450054363 |
oct | 137153600174 |
9 | 35876726754 |
10 | 12778930300 |
11 | 5468411524 |
12 | 258777a364 |
13 | 128864b426 |
14 | 8932607da |
15 | 4ebd34aba |
hex | 2f9af007c |
12778930300 has 18 divisors (see below), whose sum is σ = 27730278968. Its totient is φ = 5111572080.
The previous prime is 12778930291. The next prime is 12778930303. The reversal of 12778930300 is 303987721.
It is a super-2 number, since 2×127789303002 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12778930303) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63894552 + ... + 63894751.
Almost surely, 212778930300 is an apocalyptic number.
12778930300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12778930300 is an abundant number, since it is smaller than the sum of its proper divisors (14951348668).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12778930300 is a wasteful number, since it uses less digits than its factorization.
12778930300 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 127789317 (or 127789310 counting only the distinct ones).
The product of its (nonzero) digits is 63504, while the sum is 40.
The spelling of 12778930300 in words is "twelve billion, seven hundred seventy-eight million, nine hundred thirty thousand, three hundred".
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