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161369092 = 2296741719
BaseRepresentation
bin10011001111001…
…00110000000100
3102020122101210001
421213210300010
5312302302332
624002411044
73666420553
oct1147446004
9366571701
10161369092
11830a7a95
1246060a84
132757c991
1417607d9a
15e2780e7
hex99e4c04

161369092 has 12 divisors (see below), whose sum is σ = 282694720. Its totient is φ = 80599176.

The previous prime is 161369077. The next prime is 161369093. The reversal of 161369092 is 290963161.

It is not an unprimeable number, because it can be changed into a prime (161369093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16992 + ... + 24727.

Almost surely, 2161369092 is an apocalyptic number.

It is an amenable number.

161369092 is a deficient number, since it is larger than the sum of its proper divisors (121325628).

161369092 is a wasteful number, since it uses less digits than its factorization.

161369092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42690 (or 42688 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 161369092 is about 12703.1134766245. The cubic root of 161369092 is about 544.4275806830.

The spelling of 161369092 in words is "one hundred sixty-one million, three hundred sixty-nine thousand, ninety-two".

Divisors: 1 2 4 967 1934 3868 41719 83438 166876 40342273 80684546 161369092