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213223211112 = 23339172268139
BaseRepresentation
bin1100011010010100011…
…0000000000001101000
3202101100220002102001010
43012211012000001220
511443140120223422
6241541533223520
721255604250622
oct3064506000150
9671326072033
10213223211112
1182477a4244a
12353a8031ba0
1317150a14052
14a46a351c12
15582e2b7b0c
hex31a5180068

213223211112 has 32 divisors (see below), whose sum is σ = 533194351200. Its totient is φ = 71056227264.

The previous prime is 213223211077. The next prime is 213223211143. The reversal of 213223211112 is 211112322312.

It is a nude number because it is divisible by every one of its digits.

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, 1040062 + ... + 1228077.

It is an arithmetic number, because the mean of its divisors is an integer number (16662323475).

Almost surely, 2213223211112 is an apocalyptic number.

It is an amenable number.

213223211112 is an abundant number, since it is smaller than the sum of its proper divisors (319971140088).

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

213223211112 is a wasteful number, since it uses less digits than its factorization.

213223211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272065 (or 2272061 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

Adding to 213223211112 its reverse (211112322312), we get a palindrome (424335533424).

The spelling of 213223211112 in words is "two hundred thirteen billion, two hundred twenty-three million, two hundred eleven thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 3917 7834 11751 15668 23502 31336 47004 94008 2268139 4536278 6804417 9072556 13608834 18145112 27217668 54435336 8884300463 17768600926 26652901389 35537201852 53305802778 71074403704 106611605556 213223211112