[go: up one dir, main page]

Search a number
-
+
12965975 = 521147149
BaseRepresentation
bin110001011101…
…100001010111
3220101201222022
4301131201113
511304402400
61141523355
7215131451
oct61354127
926351868
1012965975
117356590
12441355b
1328bc899
141a172d1
151211b85
hexc5d857

12965975 has 12 divisors (see below), whose sum is σ = 17539800. Its totient is φ = 9429600.

The previous prime is 12965971. The next prime is 12965983. The reversal of 12965975 is 57956921.

It is a happy number.

It is not a de Polignac number, because 12965975 - 22 = 12965971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12965971) 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 11 ways as a sum of consecutive naturals, for example, 23300 + ... + 23849.

It is an arithmetic number, because the mean of its divisors is an integer number (1461650).

Almost surely, 212965975 is an apocalyptic number.

12965975 is a deficient number, since it is larger than the sum of its proper divisors (4573825).

12965975 is a wasteful number, since it uses less digits than its factorization.

12965975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47170 (or 47165 counting only the distinct ones).

The product of its digits is 170100, while the sum is 44.

The square root of 12965975 is about 3600.8297654846. The cubic root of 12965975 is about 234.9281506620.

The spelling of 12965975 in words is "twelve million, nine hundred sixty-five thousand, nine hundred seventy-five".

Divisors: 1 5 11 25 55 275 47149 235745 518639 1178725 2593195 12965975