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12993854 = 261731459
BaseRepresentation
bin110001100100…
…010100111110
3220110011012212
4301210110332
511311300404
61142300422
7215305646
oct61442476
926404185
1012993854
117375525
124427712
1328cc493
141a23526
15121a06e
hexc6453e

12993854 has 16 divisors (see below), whose sum is σ = 20095440. Its totient is φ = 6298560.

The previous prime is 12993847. The next prime is 12993863. The reversal of 12993854 is 45839921.

12993854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8177 + ... + 9635.

It is an arithmetic number, because the mean of its divisors is an integer number (1255965).

Almost surely, 212993854 is an apocalyptic number.

12993854 is a deficient number, since it is larger than the sum of its proper divisors (7101586).

12993854 is a wasteful number, since it uses less digits than its factorization.

12993854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595.

The product of its digits is 77760, while the sum is 41.

The square root of 12993854 is about 3604.6988778537. The cubic root of 12993854 is about 235.0964083081.

The spelling of 12993854 in words is "twelve million, nine hundred ninety-three thousand, eight hundred fifty-four".

Divisors: 1 2 61 73 122 146 1459 2918 4453 8906 88999 106507 177998 213014 6496927 12993854