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11313780 = 2235188563
BaseRepresentation
bin101011001010…
…001001110100
3210021210120220
4223022021310
510344020110
61042254340
7165110532
oct53121164
923253526
1011313780
116428235
1239573b0
13246185a
141707152
15ed7370
hexaca274

11313780 has 24 divisors (see below), whose sum is σ = 31678752. Its totient is φ = 3016992.

The previous prime is 11313763. The next prime is 11313811. The reversal of 11313780 is 8731311.

It is a super-3 number, since 3×113137803 (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11313780.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94222 + ... + 94341.

It is an arithmetic number, because the mean of its divisors is an integer number (1319948).

Almost surely, 211313780 is an apocalyptic number.

11313780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11313780 is an abundant number, since it is smaller than the sum of its proper divisors (20364972).

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

11313780 is a wasteful number, since it uses less digits than its factorization.

11313780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188575 (or 188573 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 11313780 is about 3363.5962896876. The cubic root of 11313780 is about 224.4928825808.

The spelling of 11313780 in words is "eleven million, three hundred thirteen thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 188563 377126 565689 754252 942815 1131378 1885630 2262756 2828445 3771260 5656890 11313780