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811081036 = 221543131413
BaseRepresentation
bin110000010110000…
…001110101001100
32002112012012000101
4300112001311030
53130114043121
6212252140444
726046034513
oct6026016514
92075165011
10811081036
1138691a207
121a7767724
13cc06280c
1479a1167a
154b315491
hex30581d4c

811081036 has 12 divisors (see below), whose sum is σ = 1420322512. Its totient is φ = 405274608.

The previous prime is 811081013. The next prime is 811081043. The reversal of 811081036 is 630180118.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 811080995 and 811081013.

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, 59535 + ... + 71878.

Almost surely, 2811081036 is an apocalyptic number.

It is an amenable number.

811081036 is a deficient number, since it is larger than the sum of its proper divisors (609241476).

811081036 is a wasteful number, since it uses less digits than its factorization.

811081036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132960 (or 132958 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 811081036 is about 28479.4844756713. The cubic root of 811081036 is about 932.5842625234.

The spelling of 811081036 in words is "eight hundred eleven million, eighty-one thousand, thirty-six".

Divisors: 1 2 4 1543 3086 6172 131413 262826 525652 202770259 405540518 811081036