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12897701 = 671631181
BaseRepresentation
bin110001001100…
…110110100101
3220021021022122
4301030312211
511300211301
61140235325
7214425425
oct61146645
926237278
1012897701
11730a263
12439bb45
13289779b
1419da485
1511eb81b
hexc4cda5

12897701 has 8 divisors (see below), whose sum is σ = 13181664. Its totient is φ = 12616560.

The previous prime is 12897697. The next prime is 12897761. The reversal of 12897701 is 10779821.

12897701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12897701 - 22 = 12897697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12897761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10331 + ... + 11511.

It is an arithmetic number, because the mean of its divisors is an integer number (1647708).

Almost surely, 212897701 is an apocalyptic number.

It is an amenable number.

12897701 is a deficient number, since it is larger than the sum of its proper divisors (283963).

12897701 is a wasteful number, since it uses less digits than its factorization.

12897701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 12897701 is about 3591.3369376877. The cubic root of 12897701 is about 234.5150767035.

The spelling of 12897701 in words is "twelve million, eight hundred ninety-seven thousand, seven hundred one".

Divisors: 1 67 163 1181 10921 79127 192503 12897701