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8680761305 = 51736152261
BaseRepresentation
bin10000001010110100…
…11110011111011001
3211101222101100211222
420011122132133121
5120234233330210
63553214501425
7425055152666
oct100532363731
924358340758
108680761305
1137550774a7
121823204875
13a845a7768
145c4c74a6d
1535c16c655
hex20569e7d9

8680761305 has 4 divisors (see below), whose sum is σ = 10416913572. Its totient is φ = 6944609040.

The previous prime is 8680761281. The next prime is 8680761337. The reversal of 8680761305 is 5031670868.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1433303881 + 7247457424 = 37859^2 + 85132^2 .

It is not a de Polignac number, because 8680761305 - 232 = 4385794009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868076126 + ... + 868076135.

It is an arithmetic number, because the mean of its divisors is an integer number (2604228393).

Almost surely, 28680761305 is an apocalyptic number.

It is an amenable number.

8680761305 is a deficient number, since it is larger than the sum of its proper divisors (1736152267).

8680761305 is a wasteful number, since it uses less digits than its factorization.

8680761305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736152266.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 8680761305 is about 93170.6032233343. The cubic root of 8680761305 is about 2055.1929659769.

The spelling of 8680761305 in words is "eight billion, six hundred eighty million, seven hundred sixty-one thousand, three hundred five".

Divisors: 1 5 1736152261 8680761305