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13293977 = 1923291049
BaseRepresentation
bin110010101101…
…100110011001
3221000101220112
4302231212121
511400401402
61152534105
7220665644
oct62554631
927011815
1013293977
11755aa64
124551335
1329a5c78
141aa0a5b
151278e52
hexcad999

13293977 has 16 divisors (see below), whose sum is σ = 15120000. Its totient is φ = 11620224.

The previous prime is 13293971. The next prime is 13293991. The reversal of 13293977 is 77939231.

13293977 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13293977 - 216 = 13228441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13293971) 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 15 ways as a sum of consecutive naturals, for example, 12149 + ... + 13197.

It is an arithmetic number, because the mean of its divisors is an integer number (945000).

Almost surely, 213293977 is an apocalyptic number.

It is an amenable number.

13293977 is a deficient number, since it is larger than the sum of its proper divisors (1826023).

13293977 is a wasteful number, since it uses less digits than its factorization.

13293977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120.

The product of its digits is 71442, while the sum is 41.

The square root of 13293977 is about 3646.0906461579. The cubic root of 13293977 is about 236.8926799018.

The spelling of 13293977 in words is "thirteen million, two hundred ninety-three thousand, nine hundred seventy-seven".

Divisors: 1 19 23 29 437 551 667 1049 12673 19931 24127 30421 458413 577999 699683 13293977