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30770706802 = 2112193658817
BaseRepresentation
bin11100101010000100…
…111011100101110010
32221102110111212100111
4130222010323211302
51001004300104202
622045203011534
72136345456313
oct345204734562
987373455314
1030770706802
1112060297500
125b69069baa
132b94c5c924
1416bc94a60a
15c016166d7
hex72a13b972

30770706802 has 24 divisors (see below), whose sum is σ = 50996466108. Its totient is φ = 13914193920.

The previous prime is 30770706731. The next prime is 30770706803. The reversal of 30770706802 is 20860707703.

It can be written as a sum of positive squares in 2 ways, for example, as 23984407161 + 6786299641 = 154869^2 + 82379^2 .

It is not an unprimeable number, because it can be changed into a prime (30770706803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282703 + ... + 376114.

Almost surely, 230770706802 is an apocalyptic number.

30770706802 is a deficient number, since it is larger than the sum of its proper divisors (20225759306).

30770706802 is a wasteful number, since it uses less digits than its factorization.

30770706802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659034 (or 659023 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

Subtracting from 30770706802 its reverse (20860707703), we obtain a palindrome (9909999099).

The spelling of 30770706802 in words is "thirty billion, seven hundred seventy million, seven hundred six thousand, eight hundred two".

Divisors: 1 2 11 22 121 193 242 386 2123 4246 23353 46706 658817 1317634 7246987 14493974 79716857 127151681 159433714 254303362 1398668491 2797336982 15385353401 30770706802