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8472680885 = 51694536177
BaseRepresentation
bin1111110010000001…
…01101100110110101
3210212110211210011202
413321000231212311
5114323001242020
63520422542245
7416650412354
oct77100554665
923773753152
108472680885
113658675609
121785597985
13a50451556
145a538b99b
15348c68e75
hex1f902d9b5

8472680885 has 4 divisors (see below), whose sum is σ = 10167217068. Its totient is φ = 6778144704.

The previous prime is 8472680837. The next prime is 8472680903. The reversal of 8472680885 is 5880862748.

It is a happy number.

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 3715268209 + 4757412676 = 60953^2 + 68974^2 .

It is a cyclic number.

It is not a de Polignac number, because 8472680885 - 230 = 7398939061 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 8472680885.

It is a congruent 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, 847268084 + ... + 847268093.

It is an arithmetic number, because the mean of its divisors is an integer number (2541804267).

Almost surely, 28472680885 is an apocalyptic number.

It is an amenable number.

8472680885 is a deficient number, since it is larger than the sum of its proper divisors (1694536183).

8472680885 is a wasteful number, since it uses less digits than its factorization.

8472680885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694536182.

The product of its (nonzero) digits is 6881280, while the sum is 56.

The square root of 8472680885 is about 92047.1666321131. The cubic root of 8472680885 is about 2038.6387885906.

The spelling of 8472680885 in words is "eight billion, four hundred seventy-two million, six hundred eighty thousand, eight hundred eighty-five".

Divisors: 1 5 1694536177 8472680885