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161135036 = 2279509921
BaseRepresentation
bin10011001101010…
…11100110111100
3102020012111201022
421212223212330
5312222310121
623553403312
73664424306
oct1146534674
9366174638
10161135036
1182a58157
1245b69538
13274ca29a
1417586976
15e22daab
hex99ab9bc

161135036 has 12 divisors (see below), whose sum is σ = 285556320. Its totient is φ = 79547520.

The previous prime is 161134979. The next prime is 161135047. The reversal of 161135036 is 630531161.

161135036 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161134996 and 161135014.

It is a congruent number.

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, 254645 + ... + 255276.

It is an arithmetic number, because the mean of its divisors is an integer number (23796360).

Almost surely, 2161135036 is an apocalyptic number.

It is an amenable number.

161135036 is a deficient number, since it is larger than the sum of its proper divisors (124421284).

161135036 is a wasteful number, since it uses less digits than its factorization.

161135036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510004 (or 510002 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 161135036 is about 12693.8975889992. The cubic root of 161135036 is about 544.1642336813.

Adding to 161135036 its reverse (630531161), we get a palindrome (791666197).

The spelling of 161135036 in words is "one hundred sixty-one million, one hundred thirty-five thousand, thirty-six".

Divisors: 1 2 4 79 158 316 509921 1019842 2039684 40283759 80567518 161135036