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1240230100231 = 4726387874473
BaseRepresentation
bin10010000011000011011…
…110010111110100000111
311101120020202201221122201
4102003003132113310013
5130304442401201411
62345430455135331
7155414025625003
oct22030336276407
94346222657581
101240230100231
11438a84616911
12180446674547
138cc51233045
14440554b1703
15223db9c53c1
hex120c3797d07

1240230100231 has 4 divisors (see below), whose sum is σ = 1266617974752. Its totient is φ = 1213842225712.

The previous prime is 1240230100201. The next prime is 1240230100267. The reversal of 1240230100231 is 1320010320421.

It is a happy number.

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 1240230100231 - 217 = 1240229969159 is a prime.

It is a super-2 number, since 2×12402301002312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240230100199 and 1240230100208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240230100201) 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, 13193937190 + ... + 13193937283.

It is an arithmetic number, because the mean of its divisors is an integer number (316654493688).

Almost surely, 21240230100231 is an apocalyptic number.

1240230100231 is a deficient number, since it is larger than the sum of its proper divisors (26387874521).

1240230100231 is an equidigital number, since it uses as much as digits as its factorization.

1240230100231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26387874520.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1240230100231 its reverse (1320010320421), we get a palindrome (2560240420652).

The spelling of 1240230100231 in words is "one trillion, two hundred forty billion, two hundred thirty million, one hundred thousand, two hundred thirty-one".

Divisors: 1 47 26387874473 1240230100231