Search a number
-
+
12290901 = 372325447
BaseRepresentation
bin101110111000…
…101101010101
3212010102221120
4232320231111
511121302101
61115234153
7206320350
oct56705525
925112846
1012290901
116a35377
124148959
13271452c
1418bd297
15112bb36
hexbb8b55

12290901 has 16 divisors (see below), whose sum is σ = 19544064. Its totient is φ = 6717744.

The previous prime is 12290893. The next prime is 12290903. The reversal of 12290901 is 10909221.

It is not a de Polignac number, because 12290901 - 23 = 12290893 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 (12290903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12241 + ... + 13206.

It is an arithmetic number, because the mean of its divisors is an integer number (1221504).

Almost surely, 212290901 is an apocalyptic number.

It is an amenable number.

12290901 is a deficient number, since it is larger than the sum of its proper divisors (7253163).

12290901 is a wasteful number, since it uses less digits than its factorization.

12290901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25480.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 12290901 is about 3505.8381308897. The cubic root of 12290901 is about 230.7780893950.

The spelling of 12290901 in words is "twelve million, two hundred ninety thousand, nine hundred one".

Divisors: 1 3 7 21 23 69 161 483 25447 76341 178129 534387 585281 1755843 4096967 12290901