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12028260 = 2235307653
BaseRepresentation
bin101101111000…
…100101100100
3211122002200010
4231320211210
511034401020
61105450220
7204144546
oct55704544
924562603
1012028260
116876012
124040970
132651b1a
141851696
1510c8de0
hexb78964

12028260 has 48 divisors (see below), whose sum is σ = 33840576. Its totient is φ = 3192192.

The previous prime is 12028253. The next prime is 12028267. The reversal of 12028260 is 6282021.

12028260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12028253) and next prime (12028267).

It is not an unprimeable number, because it can be changed into a prime (12028267) 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, 18094 + ... + 18746.

It is an arithmetic number, because the mean of its divisors is an integer number (705012).

Almost surely, 212028260 is an apocalyptic number.

12028260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12028260 is an abundant number, since it is smaller than the sum of its proper divisors (21812316).

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

12028260 is a wasteful number, since it uses less digits than its factorization.

12028260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12028260 is about 3468.1781961139. The cubic root of 12028260 is about 229.1224277507.

The spelling of 12028260 in words is "twelve million, twenty-eight thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 307 614 653 921 1228 1306 1535 1842 1959 2612 3070 3265 3684 3918 4605 6140 6530 7836 9210 9795 13060 18420 19590 39180 200471 400942 601413 801884 1002355 1202826 2004710 2405652 3007065 4009420 6014130 12028260