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20303030012 = 2231269608677
BaseRepresentation
bin10010111010001001…
…111010011011111100
31221101221201210021112
4102322021322123330
5313040033430022
613154352221152
71316061623216
oct227211723374
957357653245
1020303030012
118679592a51
123b2753a7b8
131bb73c6935
14da86475b6
157dc6778e2
hex4ba27a6fc

20303030012 has 24 divisors (see below), whose sum is σ = 36812845440. Its totient is φ = 9787510080.

The previous prime is 20303030009. The next prime is 20303030039. The reversal of 20303030012 is 21003030302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270983 + ... + 337694.

It is an arithmetic number, because the mean of its divisors is an integer number (1533868560).

Almost surely, 220303030012 is an apocalyptic number.

It is an amenable number.

20303030012 is a deficient number, since it is larger than the sum of its proper divisors (16509815428).

20303030012 is a wasteful number, since it uses less digits than its factorization.

20303030012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608981 (or 608979 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20303030012 its reverse (21003030302), we get a palindrome (41306060314).

The spelling of 20303030012 in words is "twenty billion, three hundred three million, thirty thousand, twelve".

Divisors: 1 2 4 31 62 124 269 538 1076 8339 16678 33356 608677 1217354 2434708 18868987 37737974 75475948 163734113 327468226 654936452 5075757503 10151515006 20303030012