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245120300231 = 337339726629
BaseRepresentation
bin1110010001001001001…
…1101111010011000111
3212102200212002102110012
43210102103233103013
513004001244101411
6304335014420435
723465211113552
oct3442223572307
9772625072405
10245120300231
1194a56023624
123b60a36171b
131a165130a91
14bc14707699
15659972718b
hex39124ef4c7

245120300231 has 4 divisors (see below), whose sum is σ = 245121364200. Its totient is φ = 245119236264.

The previous prime is 245120300209. The next prime is 245120300287. The reversal of 245120300231 is 132003021542.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 245120300231 - 214 = 245120283847 is a prime.

It is a super-2 number, since 2×2451203002312 (a number of 24 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 = 245120300197 and 245120300206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245120300731) 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, 25976 + ... + 700653.

It is an arithmetic number, because the mean of its divisors is an integer number (61280341050).

Almost surely, 2245120300231 is an apocalyptic number.

245120300231 is a deficient number, since it is larger than the sum of its proper divisors (1063969).

245120300231 is an equidigital number, since it uses as much as digits as its factorization.

245120300231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063968.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 245120300231 its reverse (132003021542), we get a palindrome (377123321773).

The spelling of 245120300231 in words is "two hundred forty-five billion, one hundred twenty million, three hundred thousand, two hundred thirty-one".

Divisors: 1 337339 726629 245120300231