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231342032213 = 1394996135441
BaseRepresentation
bin1101011101110100001…
…1110100010101010101
3211010010121211212222022
43113131003310111111
512242242030012323
6254135502342525
722466604554135
oct3273503642525
9733117755868
10231342032213
118a125600966
1238a03b8aa45
1318a7a747a76
14b2a886cac5
15603ece24c8
hex35dd0f4555

231342032213 has 16 divisors (see below), whose sum is σ = 233897160000. Its totient is φ = 228801438720.

The previous prime is 231342032203. The next prime is 231342032269. The reversal of 231342032213 is 312230243132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 231342032213 - 214 = 231342015829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231342032203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42515573 + ... + 42521013.

It is an arithmetic number, because the mean of its divisors is an integer number (14618572500).

Almost surely, 2231342032213 is an apocalyptic number.

It is an amenable number.

231342032213 is a deficient number, since it is larger than the sum of its proper divisors (2555127787).

231342032213 is a wasteful number, since it uses less digits than its factorization.

231342032213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6692.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 231342032213 its reverse (312230243132), we get a palindrome (543572275345).

The spelling of 231342032213 in words is "two hundred thirty-one billion, three hundred forty-two million, thirty-two thousand, two hundred thirteen".

Divisors: 1 139 499 613 5441 69361 85207 305887 756299 2715059 3335333 42518293 377393201 463611287 1664331167 231342032213