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231303224401 = 2066391119359
BaseRepresentation
bin1101011101101010111…
…1110001110001010001
3211010000220211020122221
43113122233301301101
512242202111140101
6254131554501041
722465623652624
oct3273257616121
9733026736587
10231303224401
118a105704a97
12389b2b94781
1318a726aaa72
14b2a3649dbb
15603b6c8aa1
hex35dabf1c51

231303224401 has 4 divisors (see below), whose sum is σ = 231304550400. Its totient is φ = 231301898404.

The previous prime is 231303224387. The next prime is 231303224417. The reversal of 231303224401 is 104422303132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231303224401 - 221 = 231301127249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231303224431) 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, 353041 + ... + 766318.

It is an arithmetic number, because the mean of its divisors is an integer number (57826137600).

Almost surely, 2231303224401 is an apocalyptic number.

It is an amenable number.

231303224401 is a deficient number, since it is larger than the sum of its proper divisors (1325999).

231303224401 is a wasteful number, since it uses less digits than its factorization.

231303224401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325998.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 231303224401 its reverse (104422303132), we get a palindrome (335725527533).

The spelling of 231303224401 in words is "two hundred thirty-one billion, three hundred three million, two hundred twenty-four thousand, four hundred one".

Divisors: 1 206639 1119359 231303224401