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231044103401 = 1571471618493
BaseRepresentation
bin1101011100101101001…
…1010011110011101001
3211002100212020112110212
43113023103103303221
512241134242302101
6254050140550505
722456326322046
oct3271323236351
9732325215425
10231044103401
1189a92411601
1238940252435
1318a30ac3927
14b27b0781cd
156023a921bb
hex35cb4d3ce9

231044103401 has 4 divisors (see below), whose sum is σ = 232515722052. Its totient is φ = 229572484752.

The previous prime is 231044103391. The next prime is 231044103503. The reversal of 231044103401 is 104301440132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 116039016025 + 115005087376 = 340645^2 + 339124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-231044103401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231044103001) 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, 735809090 + ... + 735809403.

It is an arithmetic number, because the mean of its divisors is an integer number (58128930513).

Almost surely, 2231044103401 is an apocalyptic number.

It is an amenable number.

231044103401 is a deficient number, since it is larger than the sum of its proper divisors (1471618651).

231044103401 is a wasteful number, since it uses less digits than its factorization.

231044103401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471618650.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 231044103401 its reverse (104301440132), we get a palindrome (335345543533).

The spelling of 231044103401 in words is "two hundred thirty-one billion, forty-four million, one hundred three thousand, four hundred one".

Divisors: 1 157 1471618493 231044103401