Search a number
-
+
307040811 = 37211317599
BaseRepresentation
bin10010010011010…
…001001000101011
3210101202021210220
4102103101020223
51112100301221
650244541123
710415542500
oct2223211053
9711667726
10307040811
11148353340
12869b17a3
134b7c476c
142cac74a7
151be500c6
hex124d122b

307040811 has 48 divisors (see below), whose sum is σ = 522028800. Its totient is φ = 158733120.

The previous prime is 307040743. The next prime is 307040827. The reversal of 307040811 is 118040703.

It is not a de Polignac number, because 307040811 - 210 = 307039787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (307040861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 512290 + ... + 512888.

It is an arithmetic number, because the mean of its divisors is an integer number (10875600).

Almost surely, 2307040811 is an apocalyptic number.

307040811 is a deficient number, since it is larger than the sum of its proper divisors (214987989).

307040811 is a wasteful number, since it uses less digits than its factorization.

307040811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 307040811 is about 17522.5800326322. The cubic root of 307040811 is about 674.6295624489.

The spelling of 307040811 in words is "three hundred seven million, forty thousand, eight hundred eleven".

Divisors: 1 3 7 11 21 33 49 77 147 231 317 539 599 951 1617 1797 2219 3487 4193 6589 6657 10461 12579 15533 19767 24409 29351 46123 46599 73227 88053 138369 170863 189883 322861 512589 569649 968583 1329181 2088713 3987543 6266139 9304267 14620991 27912801 43862973 102346937 307040811