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6306632680 = 235157665817
BaseRepresentation
bin1011101111110011…
…11001001111101000
3121021112001010122011
411313321321033220
5100403444221210
62521445005304
7312166331125
oct56771711750
917245033564
106306632680
112746a25527
1212800b3834
1379677981a
1443b82b74c
1526da06d8a
hex177e793e8

6306632680 has 16 divisors (see below), whose sum is σ = 14189923620. Its totient is φ = 2522653056.

The previous prime is 6306632663. The next prime is 6306632687. The reversal of 6306632680 is 862366036.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6306583396 + 49284 = 79414^2 + 222^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 157665817 = 6306632680 / (6 + 3 + 0 + 6 + 6 + 3 + 2 + 6 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (6306632687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78832869 + ... + 78832948.

Almost surely, 26306632680 is an apocalyptic number.

It is an amenable number.

6306632680 is an abundant number, since it is smaller than the sum of its proper divisors (7883290940).

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

6306632680 is a wasteful number, since it uses less digits than its factorization.

6306632680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157665828 (or 157665824 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 6306632680 is about 79414.3102973261. The cubic root of 6306632680 is about 1847.5626709813.

The spelling of 6306632680 in words is "six billion, three hundred six million, six hundred thirty-two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 157665817 315331634 630663268 788329085 1261326536 1576658170 3153316340 6306632680