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163085469 = 38926863
BaseRepresentation
bin10011011100001…
…11110010011101
3102100212121012120
421232013302131
5313222213334
624103253153
74020126561
oct1156076235
9370777176
10163085469
118406a588
124674a1b9
1327a30ca1
14179336a1
15e4b6949
hex9b87c9d

163085469 has 12 divisors (see below), whose sum is σ = 219950016. Its totient is φ = 107486368.

The previous prime is 163085459. The next prime is 163085563. The reversal of 163085469 is 964580361.

It is not a de Polignac number, because 163085469 - 24 = 163085453 is a prime.

It is a super-2 number, since 2×1630854692 = 53193740397899922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163085469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163085449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20332 + ... + 27194.

It is an arithmetic number, because the mean of its divisors is an integer number (18329168).

Almost surely, 2163085469 is an apocalyptic number.

It is an amenable number.

163085469 is a deficient number, since it is larger than the sum of its proper divisors (56864547).

163085469 is an frugal number, since it uses more digits than its factorization.

163085469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7044 (or 6955 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 163085469 is about 12770.4921205097. The cubic root of 163085469 is about 546.3510167566.

The spelling of 163085469 in words is "one hundred sixty-three million, eighty-five thousand, four hundred sixty-nine".

Divisors: 1 3 89 267 6863 7921 20589 23763 610807 1832421 54361823 163085469