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231241430443 = 1139572029199
BaseRepresentation
bin1101011101011100010…
…0000011010110101011
3211002212121112210021211
43113113010003112223
512242040301233233
6254121510213551
722464243504412
oct3272704032653
9732777483254
10231241430443
118a083839301
12389963542b7
1318a629533aa
14b299362479
15603606e5cd
hex35d71035ab

231241430443 has 4 divisors (see below), whose sum is σ = 231243573600. Its totient is φ = 231239287288.

The previous prime is 231241430437. The next prime is 231241430489. The reversal of 231241430443 is 344034142132.

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

It is a cyclic number.

It is not a de Polignac number, because 231241430443 - 29 = 231241429931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231241430243) 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, 900643 + ... + 1128556.

It is an arithmetic number, because the mean of its divisors is an integer number (57810893400).

Almost surely, 2231241430443 is an apocalyptic number.

231241430443 is a deficient number, since it is larger than the sum of its proper divisors (2143157).

231241430443 is a wasteful number, since it uses less digits than its factorization.

231241430443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143156.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 231241430443 its reverse (344034142132), we get a palindrome (575275572575).

The spelling of 231241430443 in words is "two hundred thirty-one billion, two hundred forty-one million, four hundred thirty thousand, four hundred forty-three".

Divisors: 1 113957 2029199 231241430443