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31022044103 = 277111992939
BaseRepresentation
bin11100111001000011…
…101101001111000111
32222001222110010022102
4130321003231033013
51002013120402403
622130142022315
72145520011161
oct347103551707
988058403272
1031022044103
111217a153986
12601927799b
132c0504cc1b
141704093931
15c18711b88
hex7390ed3c7

31022044103 has 4 divisors (see below), whose sum is σ = 31134037320. Its totient is φ = 30910050888.

The previous prime is 31022044037. The next prime is 31022044127. The reversal of 31022044103 is 30144022013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31022044103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31022044133) 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, 55996193 + ... + 55996746.

It is an arithmetic number, because the mean of its divisors is an integer number (7783509330).

Almost surely, 231022044103 is an apocalyptic number.

31022044103 is a deficient number, since it is larger than the sum of its proper divisors (111993217).

31022044103 is a wasteful number, since it uses less digits than its factorization.

31022044103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111993216.

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

Adding to 31022044103 its reverse (30144022013), we get a palindrome (61166066116).

The spelling of 31022044103 in words is "thirty-one billion, twenty-two million, forty-four thousand, one hundred three".

Divisors: 1 277 111992939 31022044103