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12942501 = 3111330169
BaseRepresentation
bin110001010111…
…110010100101
3220100112202220
4301113302211
511303130001
61141222553
7215003145
oct61276245
926315686
1012942501
11733a990
124401a59
1328b1cb0
141a0c925
151209c36
hexc57ca5

12942501 has 16 divisors (see below), whose sum is σ = 20274240. Its totient is φ = 7240320.

The previous prime is 12942487. The next prime is 12942509. The reversal of 12942501 is 10524921.

It is not a de Polignac number, because 12942501 - 27 = 12942373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12942509) 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, 14656 + ... + 15513.

It is an arithmetic number, because the mean of its divisors is an integer number (1267140).

Almost surely, 212942501 is an apocalyptic number.

12942501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12942501 is a deficient number, since it is larger than the sum of its proper divisors (7331739).

12942501 is a wasteful number, since it uses less digits than its factorization.

12942501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30196.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 12942501 is about 3597.5687623727. The cubic root of 12942501 is about 234.7862913018.

The spelling of 12942501 in words is "twelve million, nine hundred forty-two thousand, five hundred one".

Divisors: 1 3 11 13 33 39 143 429 30169 90507 331859 392197 995577 1176591 4314167 12942501