Search a number
-
+
812853074 = 211223373947
BaseRepresentation
bin110000011100110…
…010011101010010
32002122112012210102
4300130302131102
53131042244244
6212354132402
726100065015
oct6034623522
92078465712
10812853074
1138791a600
121a8281102
13cc533267
1479d5337c
154b56554e
hex30732752

812853074 has 48 divisors (see below), whose sum is σ = 1436629824. Its totient is φ = 343775520.

The previous prime is 812853073. The next prime is 812853157. The reversal of 812853074 is 470358218.

It is a super-2 number, since 2×8128530742 = 1321460239822498952, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (812853073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203969 + ... + 207915.

It is an arithmetic number, because the mean of its divisors is an integer number (29929788).

Almost surely, 2812853074 is an apocalyptic number.

812853074 is a deficient number, since it is larger than the sum of its proper divisors (623776750).

812853074 is a wasteful number, since it uses less digits than its factorization.

812853074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031 (or 4020 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 812853074 is about 28510.5782824551. The cubic root of 812853074 is about 933.2629340041.

The spelling of 812853074 in words is "eight hundred twelve million, eight hundred fifty-three thousand, seventy-four".

Divisors: 1 2 11 22 23 37 46 74 121 242 253 407 506 814 851 1702 2783 3947 4477 5566 7894 8954 9361 18722 43417 86834 90781 102971 146039 181562 205942 292078 477587 955174 998591 1606429 1997182 3212858 3358897 6717794 10984501 17670719 21969002 35341438 36947867 73895734 406426537 812853074