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969163897 = 13174385357
BaseRepresentation
bin111001110001000…
…100010001111001
32111112122121221011
4321301010101321
53441101221042
6240100313521
733005520502
oct7161042171
92445577834
10969163897
114580821a9
122306a28a1
13125a31780
1492a01ba9
155a13ea17
hex39c44479

969163897 has 8 divisors (see below), whose sum is σ = 1105110216. Its totient is φ = 841988352.

The previous prime is 969163891. The next prime is 969163927. The reversal of 969163897 is 798361969.

It can be written as a sum of positive squares in 4 ways, for example, as 122412096 + 846751801 = 11064^2 + 29099^2 .

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 969163897 - 23 = 969163889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (969163891) 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, 2192458 + ... + 2192899.

It is an arithmetic number, because the mean of its divisors is an integer number (138138777).

Almost surely, 2969163897 is an apocalyptic number.

It is an amenable number.

969163897 is a deficient number, since it is larger than the sum of its proper divisors (135946319).

969163897 is a wasteful number, since it uses less digits than its factorization.

969163897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385387.

The product of its digits is 4408992, while the sum is 58.

The square root of 969163897 is about 31131.3972863410. The cubic root of 969163897 is about 989.6137992991.

The spelling of 969163897 in words is "nine hundred sixty-nine million, one hundred sixty-three thousand, eight hundred ninety-seven".

Divisors: 1 13 17 221 4385357 57009641 74551069 969163897