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160806969 = 3217867441
BaseRepresentation
bin10011001010110…
…11100000111001
3102012120211200200
421211123200321
5312131310334
623542352413
73661556661
oct1145334071
9365524620
10160806969
1182853724
1245a2b709
1327413b6b
14174dd1a1
15e1b6799
hex995b839

160806969 has 6 divisors (see below), whose sum is σ = 232276746. Its totient is φ = 107204640.

The previous prime is 160806959. The next prime is 160806973. The reversal of 160806969 is 969608061.

160806969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 114062400 + 46744569 = 10680^2 + 6837^2 .

It is not a de Polignac number, because 160806969 - 216 = 160741433 is a prime.

It is a super-2 number, since 2×1608069692 = 51717762557933922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (160806959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8933712 + ... + 8933729.

It is an arithmetic number, because the mean of its divisors is an integer number (38712791).

Almost surely, 2160806969 is an apocalyptic number.

It is an amenable number.

160806969 is a deficient number, since it is larger than the sum of its proper divisors (71469777).

160806969 is a wasteful number, since it uses less digits than its factorization.

160806969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17867447 (or 17867444 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 160806969 is about 12680.9687721404. The cubic root of 160806969 is about 543.7946810688.

The spelling of 160806969 in words is "one hundred sixty million, eight hundred six thousand, nine hundred sixty-nine".

Divisors: 1 3 9 17867441 53602323 160806969