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13101980 = 2252392741
BaseRepresentation
bin110001111110…
…101110011100
3220122122112112
4301332232130
511323230410
61144453152
7216236123
oct61765634
926578475
1013101980
117439791
12447a1b8
132939768
141a50aba
15123c105
hexc7eb9c

13101980 has 24 divisors (see below), whose sum is σ = 27639360. Its totient is φ = 5216960.

The previous prime is 13101943. The next prime is 13101983. The reversal of 13101980 is 8910131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13101983) 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, 3410 + ... + 6150.

It is an arithmetic number, because the mean of its divisors is an integer number (1151640).

Almost surely, 213101980 is an apocalyptic number.

13101980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13101980 is an abundant number, since it is smaller than the sum of its proper divisors (14537380).

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

13101980 is a wasteful number, since it uses less digits than its factorization.

13101980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989 (or 2987 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 13101980 is about 3619.6657304232. The cubic root of 13101980 is about 235.7467118800.

The spelling of 13101980 in words is "thirteen million, one hundred one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 239 478 956 1195 2390 2741 4780 5482 10964 13705 27410 54820 655099 1310198 2620396 3275495 6550990 13101980