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161198014 = 2195238111
BaseRepresentation
bin10011001101110…
…10111110111110
3102020022201002211
421212322332332
5312231314024
623555011034
73665106025
oct1146727676
9366281084
10161198014
1182aa04aa
1245b99a7a
132751cb53
14175a18bc
15e242594
hex99bafbe

161198014 has 16 divisors (see below), whose sum is σ = 255041280. Its totient is φ = 76201560.

The previous prime is 161197997. The next prime is 161198041. The reversal of 161198014 is 410891161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15819 + ... + 23929.

It is an arithmetic number, because the mean of its divisors is an integer number (15940080).

Almost surely, 2161198014 is an apocalyptic number.

161198014 is a deficient number, since it is larger than the sum of its proper divisors (93843266).

161198014 is a wasteful number, since it uses less digits than its factorization.

161198014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8655.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 161198014 is about 12696.3779874419. The cubic root of 161198014 is about 544.2351181440.

The spelling of 161198014 in words is "one hundred sixty-one million, one hundred ninety-eight thousand, fourteen".

Divisors: 1 2 19 38 523 1046 8111 9937 16222 19874 154109 308218 4242053 8484106 80599007 161198014