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13880467 = 31447757
BaseRepresentation
bin110100111100…
…110010010011
3222010012102101
4310330302103
512023133332
61213301231
7225660556
oct64746223
928105371
1013880467
117920667
124794817
132b4cbc3
141bb469d
151342ae7
hexd3cc93

13880467 has 4 divisors (see below), whose sum is σ = 14328256. Its totient is φ = 13432680.

The previous prime is 13880459. The next prime is 13880491. The reversal of 13880467 is 76408831.

It is a happy number.

13880467 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76408831 = 312464801.

It is a cyclic number.

It is not a de Polignac number, because 13880467 - 23 = 13880459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13880407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223848 + ... + 223909.

It is an arithmetic number, because the mean of its divisors is an integer number (3582064).

Almost surely, 213880467 is an apocalyptic number.

13880467 is a deficient number, since it is larger than the sum of its proper divisors (447789).

13880467 is an equidigital number, since it uses as much as digits as its factorization.

13880467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447788.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 13880467 is about 3725.6498761961. The cubic root of 13880467 is about 240.3263326983.

The spelling of 13880467 in words is "thirteen million, eight hundred eighty thousand, four hundred sixty-seven".

Divisors: 1 31 447757 13880467