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13948291 = 72284659
BaseRepresentation
bin110101001101…
…010110000011
3222020122110101
4311031112003
512032321131
61214543231
7226362400
oct65152603
928218411
1013948291
117967615
124807b17
132b74a36
141bd12a7
151357c61
hexd4d583

13948291 has 6 divisors (see below), whose sum is σ = 16225620. Its totient is φ = 11955636.

The previous prime is 13948273. The next prime is 13948301. The reversal of 13948291 is 19284931.

13948291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13948291 - 219 = 13424003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13948291.

It is not an unprimeable number, because it can be changed into a prime (13948591) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142281 + ... + 142378.

It is an arithmetic number, because the mean of its divisors is an integer number (2704270).

Almost surely, 213948291 is an apocalyptic number.

13948291 is a deficient number, since it is larger than the sum of its proper divisors (2277329).

13948291 is an equidigital number, since it uses as much as digits as its factorization.

13948291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284673 (or 284666 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 13948291 is about 3734.7410887503. The cubic root of 13948291 is about 240.7171316618.

The spelling of 13948291 in words is "thirteen million, nine hundred forty-eight thousand, two hundred ninety-one".

Divisors: 1 7 49 284659 1992613 13948291