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203102330212 = 22298831982879
BaseRepresentation
bin1011110100100111010…
…1111001110101100100
3201102020112212101111101
42331021311321311210
511311423144031322
6233145351445444
720450031215335
oct2751165716544
9642215771441
10203102330212
1179153a74871
1233442686884
13161c9c81a22
149b8a12428c
15543a9cd327
hex2f49d79d64

203102330212 has 24 divisors (see below), whose sum is σ = 368101843200. Its totient is φ = 97938310176.

The previous prime is 203102330209. The next prime is 203102330219. The reversal of 203102330212 is 212033201302.

It is a self number, because there is not a number n which added to its sum of digits gives 203102330212.

It is not an unprimeable number, because it can be changed into a prime (203102330219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 889012 + ... + 1093867.

It is an arithmetic number, because the mean of its divisors is an integer number (15337576800).

Almost surely, 2203102330212 is an apocalyptic number.

It is an amenable number.

203102330212 is a deficient number, since it is larger than the sum of its proper divisors (164999512988).

203102330212 is a wasteful number, since it uses less digits than its factorization.

203102330212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983795 (or 1983793 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 203102330212 its reverse (212033201302), we get a palindrome (415135531514).

The spelling of 203102330212 in words is "two hundred three billion, one hundred two million, three hundred thirty thousand, two hundred twelve".

Divisors: 1 2 4 29 58 116 883 1766 3532 25607 51214 102428 1982879 3965758 7931516 57503491 115006982 230013964 1750882157 3501764314 7003528628 50775582553 101551165106 203102330212