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13407372 = 22321133857
BaseRepresentation
bin110011001001…
…010010001100
3221020011110100
4303021102030
511413013442
61155211100
7221650356
oct63112214
927204410
1013407372
117628180
1245a6a90
132a15774
141ad00d6
15129c84c
hexcc948c

13407372 has 36 divisors (see below), whose sum is σ = 36972936. Its totient is φ = 4062720.

The previous prime is 13407349. The next prime is 13407377. The reversal of 13407372 is 27370431.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (13407377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16533 + ... + 17324.

It is an arithmetic number, because the mean of its divisors is an integer number (1027026).

Almost surely, 213407372 is an apocalyptic number.

13407372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13407372 is an abundant number, since it is smaller than the sum of its proper divisors (23565564).

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

13407372 is a wasteful number, since it uses less digits than its factorization.

13407372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33878 (or 33873 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 13407372 is about 3661.6078435573. The cubic root of 13407372 is about 237.5643231131.

The spelling of 13407372 in words is "thirteen million, four hundred seven thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 33857 67714 101571 135428 203142 304713 372427 406284 609426 744854 1117281 1218852 1489708 2234562 3351843 4469124 6703686 13407372