Search a number
-
+
307120712 = 231915113381
BaseRepresentation
bin10010010011100…
…100101001001000
3210101220100102012
4102103210221020
51112110330322
650250355052
710416324443
oct2223445110
9711810365
10307120712
111483a8378
1286a2ba88
134b821c42
142cb0865a
151be68ae2
hex124e4a48

307120712 has 32 divisors (see below), whose sum is σ = 610219200. Its totient is φ = 144504000.

The previous prime is 307120711. The next prime is 307120717. The reversal of 307120712 is 217021703.

It is not an unprimeable number, because it can be changed into a prime (307120711) by changing a digit.

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, 16262 + ... + 29642.

It is an arithmetic number, because the mean of its divisors is an integer number (19069350).

Almost surely, 2307120712 is an apocalyptic number.

It is an amenable number.

307120712 is a deficient number, since it is larger than the sum of its proper divisors (303098488).

307120712 is a wasteful number, since it uses less digits than its factorization.

307120712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13557 (or 13553 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 307120712 is about 17524.8598282554. The cubic root of 307120712 is about 674.6880768218.

Subtracting from 307120712 its reverse (217021703), we obtain a palindrome (90099009).

The spelling of 307120712 in words is "three hundred seven million, one hundred twenty thousand, seven hundred twelve".

Divisors: 1 2 4 8 19 38 76 151 152 302 604 1208 2869 5738 11476 13381 22952 26762 53524 107048 254239 508478 1016956 2020531 2033912 4041062 8082124 16164248 38390089 76780178 153560356 307120712