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2311427031 = 34334751637
BaseRepresentation
bin1000100111000101…
…1001001111010111
312222002100122210120
42021301121033113
514213211131111
61021205523023
7111164543214
oct21161311727
95862318716
102311427031
11a86816381
12546113473
132aab46404
1417cda4b0b
15d7dcc406
hex89c593d7

2311427031 has 16 divisors (see below), whose sum is σ = 3162724224. Its totient is φ = 1500748704.

The previous prime is 2311426993. The next prime is 2311427071. The reversal of 2311427031 is 1307241132.

It is a happy number.

It is not a de Polignac number, because 2311427031 - 26 = 2311426967 is a prime.

It is a super-2 number, since 2×23114270312 = 10685389839274949922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2311426992 and 2311427010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311427071) 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 15 ways as a sum of consecutive naturals, for example, 18945 + ... + 70581.

It is an arithmetic number, because the mean of its divisors is an integer number (197670264).

Almost surely, 22311427031 is an apocalyptic number.

2311427031 is a deficient number, since it is larger than the sum of its proper divisors (851297193).

2311427031 is a wasteful number, since it uses less digits than its factorization.

2311427031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52030.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2311427031 is about 48077.3026593631. The cubic root of 2311427031 is about 1322.1885623067.

Adding to 2311427031 its reverse (1307241132), we get a palindrome (3618668163).

The spelling of 2311427031 in words is "two billion, three hundred eleven million, four hundred twenty-seven thousand, thirty-one".

Divisors: 1 3 43 129 347 1041 14921 44763 51637 154911 2220391 6661173 17918039 53754117 770475677 2311427031