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22671049 = 214110589
BaseRepresentation
bin101011001111…
…0111011001001
31120122210211111
41112132323021
521300433144
62125530321
7363462232
oct126367311
946583744
1022671049
1111885105
1277139a1
13490a12b
143022089
151ecc534
hex159eec9

22671049 has 4 divisors (see below), whose sum is σ = 22683780. Its totient is φ = 22658320.

The previous prime is 22671043. The next prime is 22671079. The reversal of 22671049 is 94017622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13104400 + 9566649 = 3620^2 + 3093^2 .

It is a cyclic number.

It is not a de Polignac number, because 22671049 - 215 = 22638281 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 22671049.

It is not an unprimeable number, because it can be changed into a prime (22671043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3154 + ... + 7435.

It is an arithmetic number, because the mean of its divisors is an integer number (5670945).

Almost surely, 222671049 is an apocalyptic number.

It is an amenable number.

22671049 is a deficient number, since it is larger than the sum of its proper divisors (12731).

22671049 is a wasteful number, since it uses less digits than its factorization.

22671049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12730.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 22671049 is about 4761.4125005086. The cubic root of 22671049 is about 283.0243957543.

The spelling of 22671049 in words is "twenty-two million, six hundred seventy-one thousand, forty-nine".

Divisors: 1 2141 10589 22671049