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13084980 = 2235218083
BaseRepresentation
bin110001111010…
…100100110100
3220121210012220
4301322210310
511322204410
61144242340
7216135426
oct61724464
926553186
1013084980
117427a37
1244703b0
132931abc
141a48816
151237070
hexc7a934

13084980 has 24 divisors (see below), whose sum is σ = 36638112. Its totient is φ = 3489312.

The previous prime is 13084969. The next prime is 13084987. The reversal of 13084980 is 8948031.

13084980 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (13084987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108982 + ... + 109101.

It is an arithmetic number, because the mean of its divisors is an integer number (1526588).

Almost surely, 213084980 is an apocalyptic number.

13084980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13084980 is an abundant number, since it is smaller than the sum of its proper divisors (23553132).

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

13084980 is a wasteful number, since it uses less digits than its factorization.

13084980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218095 (or 218093 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 13084980 is about 3617.3166850581. The cubic root of 13084980 is about 235.6447062111.

The spelling of 13084980 in words is "thirteen million, eighty-four thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 218083 436166 654249 872332 1090415 1308498 2180830 2616996 3271245 4361660 6542490 13084980