Base | Representation |
---|---|
bin | 110000101001… |
… | …010000011100 |
3 | 212222212022121 |
4 | 300221100130 |
5 | 11231030100 |
6 | 1133152324 |
7 | 213250360 |
oct | 60512034 |
9 | 25885277 |
10 | 12751900 |
11 | 721a767 |
12 | 432b6a4 |
13 | 2846305 |
14 | 199d2a0 |
15 | 11bd51a |
hex | c2941c |
12751900 has 36 divisors (see below), whose sum is σ = 31626448. Its totient is φ = 4371840.
The previous prime is 12751889. The next prime is 12751901. The reversal of 12751900 is 915721.
It is a super-2 number, since 2×127519002 = 325221907220000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12751901) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8409 + ... + 9808.
Almost surely, 212751900 is an apocalyptic number.
12751900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12751900 is an abundant number, since it is smaller than the sum of its proper divisors (18874548).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12751900 is a wasteful number, since it uses less digits than its factorization.
12751900 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18238 (or 18231 counting only the distinct ones).
The product of its (nonzero) digits is 630, while the sum is 25.
The square root of 12751900 is about 3570.9802575763. The cubic root of 12751900 is about 233.6280403180.
The spelling of 12751900 in words is "twelve million, seven hundred fifty-one thousand, nine hundred".
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