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161003086 = 280501543
BaseRepresentation
bin10011001100010…
…11011001001110
3102012221210201021
421212023121032
5312204044321
623550504354
73663334516
oct1146133116
9365853637
10161003086
1182978002
1245b050ba
13274821ca
1417550846
15e204941
hex998b64e

161003086 has 4 divisors (see below), whose sum is σ = 241504632. Its totient is φ = 80501542.

The previous prime is 161003083. The next prime is 161003113. The reversal of 161003086 is 680300161.

161003086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 680300161 = 1315193131.

It is a self number, because there is not a number n which added to its sum of digits gives 161003086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161003081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40250770 + ... + 40250773.

It is an arithmetic number, because the mean of its divisors is an integer number (60376158).

Almost surely, 2161003086 is an apocalyptic number.

161003086 is a deficient number, since it is larger than the sum of its proper divisors (80501546).

161003086 is an equidigital number, since it uses as much as digits as its factorization.

161003086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80501545.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 161003086 is about 12688.6991453025. The cubic root of 161003086 is about 544.0156583404.

The spelling of 161003086 in words is "one hundred sixty-one million, three thousand, eighty-six".

Divisors: 1 2 80501543 161003086