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231443101100042 = 2138901657734617
BaseRepresentation
bin110100100111111100001011…
…110100111010100000001010
31010100110202002122122100112222
4310213330023310322200022
5220313430432340200132
62140123254241334042
766515132541663626
oct6447741364724012
91110422078570488
10231443101100042
1167821516953027
1221b5b282337322
139c1acb59a9190
144121c9798a186
151bb5575d74412
hexd27f0bd3a80a

231443101100042 has 8 divisors (see below), whose sum is σ = 373869624853956. Its totient is φ = 106819892815392.

The previous prime is 231443101100041. The next prime is 231443101100149. The reversal of 231443101100042 is 240001101344132.

231443101100042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 179659951105441 + 51783149994601 = 13403729^2 + 7196051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 8901657734617 = 231443101100042 / (2 + 3 + 1 + 4 + 4 + 3 + 1 + 0 + 1 + 1 + 0 + 0 + 0 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 231443101099984 and 231443101100020.

It is not an unprimeable number, because it can be changed into a prime (231443101100041) 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, 4450828867283 + ... + 4450828867334.

Almost surely, 2231443101100042 is an apocalyptic number.

231443101100042 is a deficient number, since it is larger than the sum of its proper divisors (142426523753914).

231443101100042 is a wasteful number, since it uses less digits than its factorization.

231443101100042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8901657734632.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 231443101100042 its reverse (240001101344132), we get a palindrome (471444202444174).

The spelling of 231443101100042 in words is "two hundred thirty-one trillion, four hundred forty-three billion, one hundred one million, one hundred thousand, forty-two".

Divisors: 1 2 13 26 8901657734617 17803315469234 115721550550021 231443101100042