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12737480 = 235745491
BaseRepresentation
bin110000100101…
…101111001000
3212222010112112
4300211233020
511230044410
61133001452
7213160340
oct60455710
925863475
1012737480
11720a948
124323288
13283c892
141997d20
1511b9105
hexc25bc8

12737480 has 32 divisors (see below), whose sum is σ = 32754240. Its totient is φ = 4367040.

The previous prime is 12737479. The next prime is 12737507. The reversal of 12737480 is 8473721.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22466 + ... + 23025.

It is an arithmetic number, because the mean of its divisors is an integer number (1023570).

Almost surely, 212737480 is an apocalyptic number.

12737480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12737480 is an abundant number, since it is smaller than the sum of its proper divisors (20016760).

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

12737480 is a wasteful number, since it uses less digits than its factorization.

12737480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45509 (or 45505 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 12737480 is about 3568.9606330135. The cubic root of 12737480 is about 233.5399439817.

The spelling of 12737480 in words is "twelve million, seven hundred thirty-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 45491 90982 181964 227455 318437 363928 454910 636874 909820 1273748 1592185 1819640 2547496 3184370 6368740 12737480