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13752740 = 225687637
BaseRepresentation
bin110100011101…
…100110100100
3221212201012202
4310131212210
512010041430
61210434032
7224616311
oct64354644
927781182
1013752740
117843701
124732918
132b06a21
141b7dd08
151319d45
hexd1d9a4

13752740 has 12 divisors (see below), whose sum is σ = 28880796. Its totient is φ = 5501088.

The previous prime is 13752737. The next prime is 13752763. The reversal of 13752740 is 4725731.

13752740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5607424 + 8145316 = 2368^2 + 2854^2 .

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, 343799 + ... + 343838.

It is an arithmetic number, because the mean of its divisors is an integer number (2406733).

Almost surely, 213752740 is an apocalyptic number.

13752740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13752740 is an abundant number, since it is smaller than the sum of its proper divisors (15128056).

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

13752740 is a wasteful number, since it uses less digits than its factorization.

13752740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687646 (or 687644 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 13752740 is about 3708.4686866684. The cubic root of 13752740 is about 239.5869051179.

The spelling of 13752740 in words is "thirteen million, seven hundred fifty-two thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 687637 1375274 2750548 3438185 6876370 13752740