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210211211112 = 23372503499903
BaseRepresentation
bin1100001111000110010…
…0001000011101101000
3202002120222110221210120
43003301210020131220
511421003032223422
6240323015443240
721121141545540
oct3036144103550
9662528427716
10210211211112
1181171826251
12348a7386520
1316a909ba826
14a262304320
155704b5345c
hex30f1908768

210211211112 has 64 divisors (see below), whose sum is σ = 600844615680. Its totient is φ = 60036230592.

The previous prime is 210211211099. The next prime is 210211211159. The reversal of 210211211112 is 211112112012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210211211091 and 210211211100.

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, 170553 + ... + 670455.

It is an arithmetic number, because the mean of its divisors is an integer number (9388197120).

Almost surely, 2210211211112 is an apocalyptic number.

It is an amenable number.

210211211112 is an abundant number, since it is smaller than the sum of its proper divisors (390633404568).

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

210211211112 is a wasteful number, since it uses less digits than its factorization.

210211211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502422 (or 502418 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210211211112 its reverse (211112112012), we get a palindrome (421323323124).

The spelling of 210211211112 in words is "two hundred ten billion, two hundred eleven million, two hundred eleven thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 2503 5006 7509 10012 15018 17521 20024 30036 35042 52563 60072 70084 105126 140168 210252 420504 499903 999806 1499709 1999612 2999418 3499321 3999224 5998836 6998642 10497963 11997672 13997284 20995926 27994568 41991852 83983704 1251257209 2502514418 3753771627 5005028836 7507543254 8758800463 10010057672 15015086508 17517600926 26276401389 30030173016 35035201852 52552802778 70070403704 105105605556 210211211112