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12719051 = 18170271
BaseRepresentation
bin110000100001…
…001111001011
3212221012020222
4300201033023
511224002201
61132340255
7213052532
oct60411713
925835228
1012719051
1171a8014
12431468b
132834387
141991319
1511b391b
hexc213cb

12719051 has 4 divisors (see below), whose sum is σ = 12789504. Its totient is φ = 12648600.

The previous prime is 12719029. The next prime is 12719089. The reversal of 12719051 is 15091721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12719051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12719051.

It is not an unprimeable number, because it can be changed into a prime (12719351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34955 + ... + 35316.

It is an arithmetic number, because the mean of its divisors is an integer number (3197376).

Almost surely, 212719051 is an apocalyptic number.

12719051 is a deficient number, since it is larger than the sum of its proper divisors (70453).

12719051 is an equidigital number, since it uses as much as digits as its factorization.

12719051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70452.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 12719051 is about 3566.3778543503. The cubic root of 12719051 is about 233.4272585585.

The spelling of 12719051 in words is "twelve million, seven hundred nineteen thousand, fifty-one".

Divisors: 1 181 70271 12719051