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12751230 = 2353113711
BaseRepresentation
bin110000101001…
…000101111110
3212222211101210
4300221011332
511231014410
61133145250
7213245412
oct60510576
925884353
1012751230
11721a208
12432b226
132845c0b
14199cd42
1511bd220
hexc2917e

12751230 has 32 divisors (see below), whose sum is σ = 31592448. Its totient is φ = 3290400.

The previous prime is 12751201. The next prime is 12751231. The reversal of 12751230 is 3215721.

12751230 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12751197 and 12751206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751231) 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, 5926 + ... + 7785.

It is an arithmetic number, because the mean of its divisors is an integer number (987264).

Almost surely, 212751230 is an apocalyptic number.

12751230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12751230 is an abundant number, since it is smaller than the sum of its proper divisors (18841218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12751230 is a wasteful number, since it uses less digits than its factorization.

12751230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13752.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12751230 is about 3570.8864445681. The cubic root of 12751230 is about 233.6239485479.

Adding to 12751230 its reverse (3215721), we get a palindrome (15966951).

The spelling of 12751230 in words is "twelve million, seven hundred fifty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 13711 27422 41133 68555 82266 137110 205665 411330 425041 850082 1275123 2125205 2550246 4250410 6375615 12751230