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12960972 = 2234109367
BaseRepresentation
bin110001011100…
…010011001100
3220101111010000
4301130103030
511304222342
61141444300
7215111043
oct61342314
926344100
1012960972
117352852
124410690
1328ba51b
141a1555a
15121044c
hexc5c4cc

12960972 has 60 divisors (see below), whose sum is σ = 34286560. Its totient is φ = 4269024.

The previous prime is 12960971. The next prime is 12960973. The reversal of 12960972 is 27906921.

It is an interprime number because it is at equal distance from previous prime (12960971) and next prime (12960973).

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

It is not an unprimeable number, because it can be changed into a prime (12960971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35133 + ... + 35499.

Almost surely, 212960972 is an apocalyptic number.

12960972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12960972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17143280).

12960972 is an abundant number, since it is smaller than the sum of its proper divisors (21325588).

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

12960972 is a wasteful number, since it uses less digits than its factorization.

12960972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 12960972 is about 3600.1349974688. The cubic root of 12960972 is about 234.8979306248.

The spelling of 12960972 in words is "twelve million, nine hundred sixty thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 109 162 218 324 327 367 436 654 734 981 1101 1308 1468 1962 2202 2943 3303 3924 4404 5886 6606 8829 9909 11772 13212 17658 19818 29727 35316 39636 40003 59454 80006 118908 120009 160012 240018 360027 480036 720054 1080081 1440108 2160162 3240243 4320324 6480486 12960972