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13880633 = 131067741
BaseRepresentation
bin110100111100…
…110100111001
3222010012122112
4310330310321
512023140013
61213302105
7225661214
oct64746471
928105575
1013880633
1179207a8
124794935
132b4ccc0
141bb477b
151342ba8
hexd3cd39

13880633 has 4 divisors (see below), whose sum is σ = 14948388. Its totient is φ = 12812880.

The previous prime is 13880617. The next prime is 13880639. The reversal of 13880633 is 33608831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33608831 = 221315187.

It can be written as a sum of positive squares in 2 ways, for example, as 652864 + 13227769 = 808^2 + 3637^2 .

It is a cyclic number.

It is not a de Polignac number, because 13880633 - 24 = 13880617 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13880633.

It is not an unprimeable number, because it can be changed into a prime (13880639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533858 + ... + 533883.

It is an arithmetic number, because the mean of its divisors is an integer number (3737097).

Almost surely, 213880633 is an apocalyptic number.

13880633 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13880633 is a deficient number, since it is larger than the sum of its proper divisors (1067755).

13880633 is a wasteful number, since it uses less digits than its factorization.

13880633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067754.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 13880633 is about 3725.6721541220. The cubic root of 13880633 is about 240.3272907355.

The spelling of 13880633 in words is "thirteen million, eight hundred eighty thousand, six hundred thirty-three".

Divisors: 1 13 1067741 13880633