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2054310231 = 3684770077
BaseRepresentation
bin111101001110010…
…0100100101010111
312022011112202212010
41322130210211113
513201400411411
6535502555303
7101623230441
oct17234444527
95264482763
102054310231
11964671756
12493b98b33
132697b15ac
14156b95491
15c053e7a6
hex7a724957

2054310231 has 4 divisors (see below), whose sum is σ = 2739080312. Its totient is φ = 1369540152.

The previous prime is 2054310179. The next prime is 2054310239. The reversal of 2054310231 is 1320134502.

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

It is not a de Polignac number, because 2054310231 - 214 = 2054293847 is a prime.

It is a super-2 number, since 2×20543102312 = 8440381050382546722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2054310198 and 2054310207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054310239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342385036 + ... + 342385041.

It is an arithmetic number, because the mean of its divisors is an integer number (684770078).

Almost surely, 22054310231 is an apocalyptic number.

2054310231 is a deficient number, since it is larger than the sum of its proper divisors (684770081).

2054310231 is an equidigital number, since it uses as much as digits as its factorization.

2054310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684770080.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2054310231 is about 45324.4992360644. The cubic root of 2054310231 is about 1271.2237838949.

Adding to 2054310231 its reverse (1320134502), we get a palindrome (3374444733).

The spelling of 2054310231 in words is "two billion, fifty-four million, three hundred ten thousand, two hundred thirty-one".

Divisors: 1 3 684770077 2054310231