Search a number
-
+
31300412222 = 215650206111
BaseRepresentation
bin11101001001101001…
…100110001100111110
32222210101020200120202
4131021221212030332
51003100401142342
622213524243502
72155440054062
oct351151461476
988711220522
1031300412222
11123022a2a82
126096540592
132c4a9158a1
14172d035aa2
15c32d9b332
hex749a6633e

31300412222 has 4 divisors (see below), whose sum is σ = 46950618336. Its totient is φ = 15650206110.

The previous prime is 31300412173. The next prime is 31300412233. The reversal of 31300412222 is 22221400313.

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

It is a junction number, because it is equal to n+sod(n) for n = 31300412194 and 31300412203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7825103054 + ... + 7825103057.

It is an arithmetic number, because the mean of its divisors is an integer number (11737654584).

Almost surely, 231300412222 is an apocalyptic number.

31300412222 is a deficient number, since it is larger than the sum of its proper divisors (15650206114).

31300412222 is a wasteful number, since it uses less digits than its factorization.

31300412222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15650206113.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31300412222 its reverse (22221400313), we get a palindrome (53521812535).

The spelling of 31300412222 in words is "thirty-one billion, three hundred million, four hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 15650206111 31300412222