Search a number
-
+
12250165 = 512971889
BaseRepresentation
bin101110101110…
…110000110101
3212001101001211
4232232300311
511114001130
61114321421
7206060524
oct56566065
925041054
1012250165
116a07804
124129271
1326cbb25
1418ac4bb
15111ea2a
hexbaec35

12250165 has 8 divisors (see below), whose sum is σ = 14719320. Its totient is φ = 9787392.

The previous prime is 12250163. The next prime is 12250169. The reversal of 12250165 is 56105221.

It can be written as a sum of positive squares in 4 ways, for example, as 4813636 + 7436529 = 2194^2 + 2727^2 .

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 12250165 - 21 = 12250163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12250163) 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, 5541 + ... + 7429.

It is an arithmetic number, because the mean of its divisors is an integer number (1839915).

Almost surely, 212250165 is an apocalyptic number.

It is an amenable number.

12250165 is a deficient number, since it is larger than the sum of its proper divisors (2469155).

12250165 is a wasteful number, since it uses less digits than its factorization.

12250165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 12250165 is about 3500.0235713492. The cubic root of 12250165 is about 230.5228495942.

Adding to 12250165 its reverse (56105221), we get a palindrome (68355386).

The spelling of 12250165 in words is "twelve million, two hundred fifty thousand, one hundred sixty-five".

Divisors: 1 5 1297 1889 6485 9445 2450033 12250165