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12444972 = 2231037081
BaseRepresentation
bin101111011110…
…010100101100
3212102021021220
4233132110230
511141214342
61122423340
7210531501
oct57362454
925367256
1012444972
117030101
124201b50
1327696b7
14191d4a8
15115c5ec
hexbde52c

12444972 has 12 divisors (see below), whose sum is σ = 29038296. Its totient is φ = 4148320.

The previous prime is 12444941. The next prime is 12444979. The reversal of 12444972 is 27944421.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12444979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518529 + ... + 518552.

It is an arithmetic number, because the mean of its divisors is an integer number (2419858).

Almost surely, 212444972 is an apocalyptic number.

12444972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12444972 is an abundant number, since it is smaller than the sum of its proper divisors (16593324).

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

12444972 is a wasteful number, since it uses less digits than its factorization.

12444972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037088 (or 1037086 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 12444972 is about 3527.7431879319. The cubic root of 12444972 is about 231.7383842506.

It can be divided in two parts, 1244 and 4972, that added together give a triangular number (6216 = T111).

The spelling of 12444972 in words is "twelve million, four hundred forty-four thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 1037081 2074162 3111243 4148324 6222486 12444972