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231198364801 = 916125237241
BaseRepresentation
bin1101011101010001111…
…1110001010010000001
3211002202121111211100001
43113110133301102001
512241443240133201
6254113331200001
722463211450535
oct3272437612201
9732677454301
10231198364801
118a0614a4468
1238983a46001
1318a56a55371
14b293751bc5
1560323b4301
hex35d47f1481

231198364801 has 4 divisors (see below), whose sum is σ = 231223611204. Its totient is φ = 231173118400.

The previous prime is 231198364799. The next prime is 231198364819. The reversal of 231198364801 is 108463891132.

231198364801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53515882225 + 177682482576 = 231335^2 + 421524^2 .

It is a cyclic number.

It is not a de Polignac number, because 231198364801 - 21 = 231198364799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231198367801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12609460 + ... + 12627781.

It is an arithmetic number, because the mean of its divisors is an integer number (57805902801).

Almost surely, 2231198364801 is an apocalyptic number.

It is an amenable number.

231198364801 is a deficient number, since it is larger than the sum of its proper divisors (25246403).

231198364801 is an equidigital number, since it uses as much as digits as its factorization.

231198364801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25246402.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 231198364801 in words is "two hundred thirty-one billion, one hundred ninety-eight million, three hundred sixty-four thousand, eight hundred one".

Divisors: 1 9161 25237241 231198364801