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12962280 = 2335109991
BaseRepresentation
bin110001011100…
…100111101000
3220101112220110
4301130213220
511304243110
61141454320
7215114622
oct61344750
926345813
1012962280
117353831
1244113a0
1328bacb6
141a15c12
151210a20
hexc5c9e8

12962280 has 64 divisors (see below), whose sum is σ = 39283200. Its totient is φ = 3421440.

The previous prime is 12962251. The next prime is 12962281. The reversal of 12962280 is 8226921.

12962280 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12962281) 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, 12585 + ... + 13575.

It is an arithmetic number, because the mean of its divisors is an integer number (613800).

Almost surely, 212962280 is an apocalyptic number.

12962280 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 12962280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19641600).

12962280 is an abundant number, since it is smaller than the sum of its proper divisors (26320920).

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

12962280 is a wasteful number, since it uses less digits than its factorization.

12962280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 12962280 is about 3600.3166527404. The cubic root of 12962280 is about 234.9058321967.

The spelling of 12962280 in words is "twelve million, nine hundred sixty-two thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 109 120 218 327 436 545 654 872 991 1090 1308 1635 1982 2180 2616 2973 3270 3964 4360 4955 5946 6540 7928 9910 11892 13080 14865 19820 23784 29730 39640 59460 108019 118920 216038 324057 432076 540095 648114 864152 1080190 1296228 1620285 2160380 2592456 3240570 4320760 6481140 12962280