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12404740 = 225620237
BaseRepresentation
bin101111010100…
…100000000100
3212100020002211
4233110200010
511133422430
61121513204
7210303265
oct57244004
925306084
1012404740
117002957
1241a2804
1327542aa
14190c96c
15115072a
hexbd4804

12404740 has 12 divisors (see below), whose sum is σ = 26049996. Its totient is φ = 4961888.

The previous prime is 12404729. The next prime is 12404761. The reversal of 12404740 is 4740421.

It can be written as a sum of positive squares in 2 ways, for example, as 4519876 + 7884864 = 2126^2 + 2808^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310099 + ... + 310138.

It is an arithmetic number, because the mean of its divisors is an integer number (2170833).

Almost surely, 212404740 is an apocalyptic number.

12404740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12404740 is an abundant number, since it is smaller than the sum of its proper divisors (13645256).

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

12404740 is a wasteful number, since it uses less digits than its factorization.

12404740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620246 (or 620244 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 12404740 is about 3522.0363427994. The cubic root of 12404740 is about 231.4883940399.

The spelling of 12404740 in words is "twelve million, four hundred four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 620237 1240474 2480948 3101185 6202370 12404740