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13948949 = 77272741
BaseRepresentation
bin110101001101…
…100000010101
3222020200100202
4311031200111
512032331244
61214550245
7226364330
oct65154025
928220322
1013948949
117968063
124808385
132b75121
141bd1617
15135804e
hexd4d815

13948949 has 8 divisors (see below), whose sum is σ = 15969408. Its totient is φ = 11935440.

The previous prime is 13948939. The next prime is 13948973. The reversal of 13948949 is 94984931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13948949 - 216 = 13883413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13948919) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3719 + ... + 6459.

It is an arithmetic number, because the mean of its divisors is an integer number (1996176).

Almost surely, 213948949 is an apocalyptic number.

It is an amenable number.

13948949 is a deficient number, since it is larger than the sum of its proper divisors (2020459).

13948949 is an equidigital number, since it uses as much as digits as its factorization.

13948949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475.

The product of its digits is 279936, while the sum is 47.

The square root of 13948949 is about 3734.8291794940. The cubic root of 13948949 is about 240.7209168181.

The spelling of 13948949 in words is "thirteen million, nine hundred forty-eight thousand, nine hundred forty-nine".

Divisors: 1 7 727 2741 5089 19187 1992707 13948949