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12986120 = 2357192441
BaseRepresentation
bin110001100010…
…011100001000
3220102202121102
4301202130020
511311023440
61142200532
7215244260
oct61423410
926382542
1012986120
11736a734
124423148
1328c8ac4
141a207a0
151217b15
hexc62708

12986120 has 64 divisors (see below), whose sum is σ = 35164800. Its totient is φ = 4216320.

The previous prime is 12986111. The next prime is 12986153. The reversal of 12986120 is 2168921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4100 + ... + 6540.

It is an arithmetic number, because the mean of its divisors is an integer number (549450).

Almost surely, 212986120 is an apocalyptic number.

12986120 is a gapful number since it is divisible by the number (10) 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 12986120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17582400).

12986120 is an abundant number, since it is smaller than the sum of its proper divisors (22178680).

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

12986120 is a wasteful number, since it uses less digits than its factorization.

12986120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478 (or 2474 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 12986120 is about 3603.6259517325. The cubic root of 12986120 is about 235.0497555731.

The spelling of 12986120 in words is "twelve million, nine hundred eighty-six thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 19 20 28 35 38 40 56 70 76 95 133 140 152 190 266 280 380 532 665 760 1064 1330 2441 2660 4882 5320 9764 12205 17087 19528 24410 34174 46379 48820 68348 85435 92758 97640 136696 170870 185516 231895 324653 341740 371032 463790 649306 683480 927580 1298612 1623265 1855160 2597224 3246530 6493060 12986120