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12220952 = 2319374153
BaseRepresentation
bin101110100111…
…101000011000
3211222212222212
4232213220120
511112032302
61113534252
7205606412
oct56475030
924885885
1012220952
116997867
124114388
1326bb743
1418a19b2
151116052
hexba7a18

12220952 has 64 divisors (see below), whose sum is σ = 25855200. Its totient is φ = 5391360.

The previous prime is 12220951. The next prime is 12220969. The reversal of 12220952 is 25902221.

12220952 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 (12220951) 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, 230558 + ... + 230610.

Almost surely, 212220952 is an apocalyptic number.

It is an amenable number.

12220952 is an abundant number, since it is smaller than the sum of its proper divisors (13634248).

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

12220952 is a wasteful number, since it uses less digits than its factorization.

12220952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 12220952 is about 3495.8478227749. The cubic root of 12220952 is about 230.3394609301.

The spelling of 12220952 in words is "twelve million, two hundred twenty thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 19 37 38 41 53 74 76 82 106 148 152 164 212 296 328 424 703 779 1007 1406 1517 1558 1961 2014 2173 2812 3034 3116 3922 4028 4346 5624 6068 6232 7844 8056 8692 12136 15688 17384 28823 37259 41287 57646 74518 80401 82574 115292 149036 160802 165148 230584 298072 321604 330296 643208 1527619 3055238 6110476 12220952