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13340149 = 26350723
BaseRepresentation
bin110010111000…
…110111110101
3221002202020121
4302320313311
511403341044
61153531541
7221250364
oct62706765
927082217
1013340149
117591719
124573bb1
1329c0ca4
141ab37db
151287984
hexcb8df5

13340149 has 4 divisors (see below), whose sum is σ = 13391136. Its totient is φ = 13289164.

The previous prime is 13340143. The next prime is 13340167. The reversal of 13340149 is 94104331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13340149 - 27 = 13340021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13340143) 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, 25099 + ... + 25624.

It is an arithmetic number, because the mean of its divisors is an integer number (3347784).

Almost surely, 213340149 is an apocalyptic number.

It is an amenable number.

13340149 is a deficient number, since it is larger than the sum of its proper divisors (50987).

13340149 is an equidigital number, since it uses as much as digits as its factorization.

13340149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50986.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13340149 is about 3652.4168710595. The cubic root of 13340149 is about 237.1666177486.

The spelling of 13340149 in words is "thirteen million, three hundred forty thousand, one hundred forty-nine".

Divisors: 1 263 50723 13340149