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13192040 = 235329801
BaseRepresentation
bin110010010100…
…101101101000
3220211020002002
4302110231220
511334121130
61150430132
7220062521
oct62245550
926736062
1013192040
1174a0414
124502348
13296b754
141a75848
151258b45
hexc94b68

13192040 has 16 divisors (see below), whose sum is σ = 29682180. Its totient is φ = 5276800.

The previous prime is 13192033. The next prime is 13192057. The reversal of 13192040 is 4029131.

It can be written as a sum of positive squares in 2 ways, for example, as 13060996 + 131044 = 3614^2 + 362^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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 3 ways as a sum of consecutive naturals, for example, 164861 + ... + 164940.

Almost surely, 213192040 is an apocalyptic number.

13192040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13192040 is an abundant number, since it is smaller than the sum of its proper divisors (16490140).

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

13192040 is a wasteful number, since it uses less digits than its factorization.

13192040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329812 (or 329808 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 13192040 is about 3632.0848007721. The cubic root of 13192040 is about 236.2856351909.

The spelling of 13192040 in words is "thirteen million, one hundred ninety-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 329801 659602 1319204 1649005 2638408 3298010 6596020 13192040