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161085068 = 2299140637
BaseRepresentation
bin10011001100111…
…11011010001100
3102020002222011122
421212133122030
5312214210233
623552340112
73664125524
oct1146373214
9366088148
10161085068
1182a23661
1245b44638
13274b0611
1417572684
15e21dd98
hex999f68c

161085068 has 12 divisors (see below), whose sum is σ = 282190272. Its totient is φ = 80459280.

The previous prime is 161085019. The next prime is 161085091. The reversal of 161085068 is 860580161.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16355 + ... + 24282.

It is an arithmetic number, because the mean of its divisors is an integer number (23515856).

Almost surely, 2161085068 is an apocalyptic number.

It is an amenable number.

161085068 is a deficient number, since it is larger than the sum of its proper divisors (121105204).

161085068 is a wasteful number, since it uses less digits than its factorization.

161085068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41632 (or 41630 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 161085068 is about 12691.9292465724. The cubic root of 161085068 is about 544.1079793946.

The spelling of 161085068 in words is "one hundred sixty-one million, eighty-five thousand, sixty-eight".

Divisors: 1 2 4 991 1982 3964 40637 81274 162548 40271267 80542534 161085068