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213021032203 = 730431576029
BaseRepresentation
bin1100011001100100001…
…0101111111100001011
3202100211210122122201101
43012121002233330023
511442231341012303
6241505512002231
721250600620010
oct3063102577413
9670753578641
10213021032203
1182383901441
1235350390377
131711ab76065
14a44b563707
15581b67cd1d
hex31990aff0b

213021032203 has 4 divisors (see below), whose sum is σ = 243452608240. Its totient is φ = 182589456168.

The previous prime is 213021032173. The next prime is 213021032239. The reversal of 213021032203 is 302230120312.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 213021032203 - 229 = 212484161291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213021032243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15215788008 + ... + 15215788021.

It is an arithmetic number, because the mean of its divisors is an integer number (60863152060).

Almost surely, 2213021032203 is an apocalyptic number.

213021032203 is a deficient number, since it is larger than the sum of its proper divisors (30431576037).

213021032203 is an equidigital number, since it uses as much as digits as its factorization.

213021032203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30431576036.

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

Adding to 213021032203 its reverse (302230120312), we get a palindrome (515251152515).

The spelling of 213021032203 in words is "two hundred thirteen billion, twenty-one million, thirty-two thousand, two hundred three".

Divisors: 1 7 30431576029 213021032203