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31306006346 = 273214424701
BaseRepresentation
bin11101001001111110…
…111011111101001010
32222210202202220021112
4131021332323331022
51003103314200341
622214244210322
72155535443346
oct351176737512
988722686245
1031306006346
1112305473a1a
1260983999a2
132c4bb23c14
14172da90626
15c33603aeb
hex749fbbf4a

31306006346 has 8 divisors (see below), whose sum is σ = 47602283844. Its totient is φ = 15438578400.

The previous prime is 31306006331. The next prime is 31306006411. The reversal of 31306006346 is 64360060313.

It can be written as a sum of positive squares in 2 ways, for example, as 29211937225 + 2094069121 = 170915^2 + 45761^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107212205 + ... + 107212496.

Almost surely, 231306006346 is an apocalyptic number.

31306006346 is a deficient number, since it is larger than the sum of its proper divisors (16296277498).

31306006346 is a wasteful number, since it uses less digits than its factorization.

31306006346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214424776.

The product of its (nonzero) digits is 23328, while the sum is 32.

Adding to 31306006346 its reverse (64360060313), we get a palindrome (95666066659).

The spelling of 31306006346 in words is "thirty-one billion, three hundred six million, six thousand, three hundred forty-six".

Divisors: 1 2 73 146 214424701 428849402 15653003173 31306006346