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161042086 = 2312597453
BaseRepresentation
bin10011001100101…
…00111010100110
3102020000210012201
421212110322212
5312211321321
623551405114
73663556312
oct1146247246
9366023181
10161042086
11829a4337
1245b2379a
1327496b9a
1417560b42
15e211291
hex9994ea6

161042086 has 8 divisors (see below), whose sum is σ = 249355584. Its totient is φ = 77923560.

The previous prime is 161042083. The next prime is 161042107. The reversal of 161042086 is 680240161.

161042086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161042083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1298665 + ... + 1298788.

It is an arithmetic number, because the mean of its divisors is an integer number (31169448).

Almost surely, 2161042086 is an apocalyptic number.

161042086 is a deficient number, since it is larger than the sum of its proper divisors (88313498).

161042086 is a wasteful number, since it uses less digits than its factorization.

161042086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597486.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 161042086 is about 12690.2358528122. The cubic root of 161042086 is about 544.0595806823.

The spelling of 161042086 in words is "one hundred sixty-one million, forty-two thousand, eighty-six".

Divisors: 1 2 31 62 2597453 5194906 80521043 161042086