Search a number
-
+
307113990 = 23511938581
BaseRepresentation
bin10010010011100…
…011000000000110
3210101220000012020
4102103203000012
51112110121430
650250304010
710416266031
oct2223430006
9711800166
10307113990
111483a3317
1286a28006
134b81bb71
142cb06018
151be66b10
hex124e3006

307113990 has 32 divisors (see below), whose sum is σ = 737777376. Its totient is φ = 81818880.

The previous prime is 307113977. The next prime is 307114021. The reversal of 307113990 is 99311703.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31500 + ... + 40080.

It is an arithmetic number, because the mean of its divisors is an integer number (23055543).

Almost surely, 2307113990 is an apocalyptic number.

307113990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

307113990 is an abundant number, since it is smaller than the sum of its proper divisors (430663386).

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

307113990 is a wasteful number, since it uses less digits than its factorization.

307113990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9784.

The product of its (nonzero) digits is 5103, while the sum is 33.

The square root of 307113990 is about 17524.6680425051. The cubic root of 307113990 is about 674.6831544507.

The spelling of 307113990 in words is "three hundred seven million, one hundred thirteen thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 1193 2386 3579 5965 7158 8581 11930 17162 17895 25743 35790 42905 51486 85810 128715 257430 10237133 20474266 30711399 51185665 61422798 102371330 153556995 307113990