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7160997889 = 83353244411
BaseRepresentation
bin1101010101101010…
…00010100000000001
3200111001200101101001
412222311002200001
5104131203413024
63142325012001
7342312322603
oct65265024001
920431611331
107160997889
113045218781
12147a254001
138a1785976
144bd0a9173
152bda1c244
hex1aad42801

7160997889 has 8 divisors (see below), whose sum is σ = 7267835232. Its totient is φ = 7054650240.

The previous prime is 7160997817. The next prime is 7160997901. The reversal of 7160997889 is 9887990617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7160997889 - 29 = 7160997377 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 7160997889.

It is not an unprimeable number, because it can be changed into a prime (7160997589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92907 + ... + 151504.

It is an arithmetic number, because the mean of its divisors is an integer number (908479404).

Almost surely, 27160997889 is an apocalyptic number.

It is an amenable number.

7160997889 is a deficient number, since it is larger than the sum of its proper divisors (106837343).

7160997889 is a wasteful number, since it uses less digits than its factorization.

7160997889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244847.

The product of its (nonzero) digits is 13716864, while the sum is 64.

The square root of 7160997889 is about 84622.6795191455. The cubic root of 7160997889 is about 1927.4857763023.

The spelling of 7160997889 in words is "seven billion, one hundred sixty million, nine hundred ninety-seven thousand, eight hundred eighty-nine".

Divisors: 1 83 353 29299 244411 20286113 86277083 7160997889