Search a number
-
+
12220692 = 2231192581
BaseRepresentation
bin101110100111…
…100100010100
3211222212122020
4232213210110
511112030232
61113533140
7205605561
oct56474424
924885566
1012220692
116997650
1241141b0
1326bb5a3
1418a1868
151115e2c
hexba7914

12220692 has 24 divisors (see below), whose sum is σ = 31107552. Its totient is φ = 3703200.

The previous prime is 12220673. The next prime is 12220699. The reversal of 12220692 is 29602221.

12220692 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220699) 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, 46159 + ... + 46422.

It is an arithmetic number, because the mean of its divisors is an integer number (1296148).

Almost surely, 212220692 is an apocalyptic number.

12220692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220692 is an abundant number, since it is smaller than the sum of its proper divisors (18886860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12220692 is a wasteful number, since it uses less digits than its factorization.

12220692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92599 (or 92597 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12220692 is about 3495.8106356037. The cubic root of 12220692 is about 230.3378274326.

The spelling of 12220692 in words is "twelve million, two hundred twenty thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 92581 185162 277743 370324 555486 1018391 1110972 2036782 3055173 4073564 6110346 12220692