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813662030 = 25238939749
BaseRepresentation
bin110000011111110…
…111111101001110
32002201001022110202
4300133313331032
53131244141110
6212423333502
726110004336
oct6037677516
92081038422
10813662030
11388322365
121a85b1292
13cc75752c
147a0c40c6
154b6750a5
hex307f7f4e

813662030 has 32 divisors (see below), whose sum is σ = 1545480000. Its totient is φ = 307808512.

The previous prime is 813662027. The next prime is 813662051. The reversal of 813662030 is 30266318.

It is a junction number, because it is equal to n+sod(n) for n = 813661984 and 813662002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 596 + ... + 40344.

It is an arithmetic number, because the mean of its divisors is an integer number (48296250).

Almost surely, 2813662030 is an apocalyptic number.

813662030 is a deficient number, since it is larger than the sum of its proper divisors (731817970).

813662030 is a wasteful number, since it uses less digits than its factorization.

813662030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39868.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 813662030 is about 28524.7616992675. The cubic root of 813662030 is about 933.5724275493.

The spelling of 813662030 in words is "eight hundred thirteen million, six hundred sixty-two thousand, thirty".

Divisors: 1 2 5 10 23 46 89 115 178 230 445 890 2047 4094 10235 20470 39749 79498 198745 397490 914227 1828454 3537661 4571135 7075322 9142270 17688305 35376610 81366203 162732406 406831015 813662030