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13293953 = 33140163
BaseRepresentation
bin110010101101…
…100110000001
3221000101212122
4302231212001
511400401303
61152534025
7220665611
oct62554601
927011778
1013293953
11755aa42
124551315
1329a5c5a
141aa0a41
151278e38
hexcad981

13293953 has 4 divisors (see below), whose sum is σ = 13334448. Its totient is φ = 13253460.

The previous prime is 13293893. The next prime is 13293971. The reversal of 13293953 is 35939231.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35939231 = 66154371.

It is a cyclic number.

It is not a de Polignac number, because 13293953 - 214 = 13277569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13293053) 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 3 ways as a sum of consecutive naturals, for example, 19751 + ... + 20412.

It is an arithmetic number, because the mean of its divisors is an integer number (3333612).

Almost surely, 213293953 is an apocalyptic number.

It is an amenable number.

13293953 is a deficient number, since it is larger than the sum of its proper divisors (40495).

13293953 is an equidigital number, since it uses as much as digits as its factorization.

13293953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40494.

The product of its digits is 21870, while the sum is 35.

The square root of 13293953 is about 3646.0873549601. The cubic root of 13293953 is about 236.8925373454.

The spelling of 13293953 in words is "thirteen million, two hundred ninety-three thousand, nine hundred fifty-three".

Divisors: 1 331 40163 13293953