Search a number
-
+
5306904787 = 315310730187
BaseRepresentation
bin1001111000101000…
…01111000011010011
3111200211212200210011
410330110033003103
541332031423122
62234333215351
7245336642422
oct47424170323
914624780704
105306904787
112283678128
121041331557
13667606462
14384b512b9
15210d7b377
hex13c50f0d3

5306904787 has 16 divisors (see below), whose sum is σ = 5633805312. Its totient is φ = 4991556960.

The previous prime is 5306904781. The next prime is 5306904803. The reversal of 5306904787 is 7874096035.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-5306904787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5306904787.

It is not an unprimeable number, because it can be changed into a prime (5306904781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160708 + ... + 190894.

It is an arithmetic number, because the mean of its divisors is an integer number (352112832).

Almost surely, 25306904787 is an apocalyptic number.

5306904787 is a deficient number, since it is larger than the sum of its proper divisors (326900525).

5306904787 is a wasteful number, since it uses less digits than its factorization.

5306904787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30378.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 5306904787 is about 72848.5057293559. The cubic root of 5306904787 is about 1744.2702166444.

The spelling of 5306904787 in words is "five billion, three hundred six million, nine hundred four thousand, seven hundred eighty-seven".

Divisors: 1 31 53 107 1643 3317 5671 30187 175801 935797 1599911 3230009 49597241 100130279 171190477 5306904787