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12997501 = 111962189
BaseRepresentation
bin110001100101…
…001101111101
3220110100012221
4301211031331
511311410001
61142325341
7215322406
oct61451575
926410187
1012997501
117378240
124429851
13290103a
141a249ad
15121b1a1
hexc6537d

12997501 has 8 divisors (see below), whose sum is σ = 14925600. Its totient is φ = 11193840.

The previous prime is 12997499. The next prime is 12997513. The reversal of 12997501 is 10579921.

12997501 is digitally balanced in base 3, 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 12997501 - 21 = 12997499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12997541) 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, 30886 + ... + 31303.

It is an arithmetic number, because the mean of its divisors is an integer number (1865700).

Almost surely, 212997501 is an apocalyptic number.

12997501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12997501 is a deficient number, since it is larger than the sum of its proper divisors (1928099).

12997501 is a wasteful number, since it uses less digits than its factorization.

12997501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62219.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 12997501 is about 3605.2047098605. The cubic root of 12997501 is about 235.1184011774.

The spelling of 12997501 in words is "twelve million, nine hundred ninety-seven thousand, five hundred one".

Divisors: 1 11 19 209 62189 684079 1181591 12997501