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30770806206 = 2376112010463
BaseRepresentation
bin11100101010000101…
…010011110110111110
32221102110200220201010
4130222011103312332
51001004311244311
622045205100050
72136346352160
oct345205236676
987373626633
1030770806206
1112060355158
125b690b7626
132b94c95c4a
1416bc974930
15c01635da6
hex72a153dbe

30770806206 has 32 divisors (see below), whose sum is σ = 71486281728. Its totient is φ = 8647532640.

The previous prime is 30770806139. The next prime is 30770806217. The reversal of 30770806206 is 60260807703.

It is a super-2 number, since 2×307708062062 (a number of 22 digits) contains 22 as substring.

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, 6002670 + ... + 6007793.

It is an arithmetic number, because the mean of its divisors is an integer number (2233946304).

Almost surely, 230770806206 is an apocalyptic number.

30770806206 is an abundant number, since it is smaller than the sum of its proper divisors (40715475522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30770806206 is a wasteful number, since it uses less digits than its factorization.

30770806206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12010536.

The product of its (nonzero) digits is 84672, while the sum is 39.

The spelling of 30770806206 in words is "thirty billion, seven hundred seventy million, eight hundred six thousand, two hundred six".

Divisors: 1 2 3 6 7 14 21 42 61 122 183 366 427 854 1281 2562 12010463 24020926 36031389 72062778 84073241 168146482 252219723 504439446 732638243 1465276486 2197914729 4395829458 5128467701 10256935402 15385403103 30770806206