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12753730 = 251123712
BaseRepresentation
bin110000101001…
…101101000010
3212222221211101
4300221231002
511231104410
61133205014
7213255613
oct60515502
925887741
1012753730
117221080
12433076a
1328470b2
14199dc0a
1511bdd3a
hexc29b42

12753730 has 48 divisors (see below), whose sum is σ = 26505792. Its totient is φ = 4373600.

The previous prime is 12753691. The next prime is 12753737. The reversal of 12753730 is 3735721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12753737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179595 + ... + 179665.

It is an arithmetic number, because the mean of its divisors is an integer number (552204).

Almost surely, 212753730 is an apocalyptic number.

12753730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12753730 is an abundant number, since it is smaller than the sum of its proper divisors (13752062).

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

12753730 is a wasteful number, since it uses less digits than its factorization.

12753730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 12753730 is about 3571.2364805484. The cubic root of 12753730 is about 233.6392156164.

Subtracting from 12753730 its reverse (3735721), we obtain a square (9018009 = 30032).

It can be divided in two parts, 1275 and 3730, that added together give a palindrome (5005).

The spelling of 12753730 in words is "twelve million, seven hundred fifty-three thousand, seven hundred thirty".

Divisors: 1 2 5 10 11 22 23 46 55 71 110 115 142 230 253 355 506 710 781 1265 1562 1633 2530 3266 3905 5041 7810 8165 10082 16330 17963 25205 35926 50410 55451 89815 110902 115943 179630 231886 277255 554510 579715 1159430 1275373 2550746 6376865 12753730