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12972348 = 2232379739
BaseRepresentation
bin110001011111…
…000100111100
3220102001201100
4301133010330
511310103343
61142013100
7215156154
oct61370474
926361640
1012972348
117360354
124417190
1328c275c
141a19764
1512139d3
hexc5f13c

12972348 has 36 divisors (see below), whose sum is σ = 33680920. Its totient is φ = 4206816.

The previous prime is 12972347. The next prime is 12972371. The reversal of 12972348 is 84327921.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12972341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3538 + ... + 6201.

Almost surely, 212972348 is an apocalyptic number.

12972348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12972348 is an abundant number, since it is smaller than the sum of its proper divisors (20708572).

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

12972348 is a wasteful number, since it uses less digits than its factorization.

12972348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9786 (or 9781 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 12972348 is about 3601.7145916910. The cubic root of 12972348 is about 234.9666347681.

The spelling of 12972348 in words is "twelve million, nine hundred seventy-two thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 37 74 111 148 222 333 444 666 1332 9739 19478 29217 38956 58434 87651 116868 175302 350604 360343 720686 1081029 1441372 2162058 3243087 4324116 6486174 12972348