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44120011031 = 188923356279
BaseRepresentation
bin101001000101110000…
…011111000100010111
311012212210120210010122
4221011300133010113
51210324210323111
632133552542155
73121222622525
oct510560370427
9135783523118
1044120011031
1117790661338
12867385195b
134211802c05
1421c7841315
151233565cdb
hexa45c1f117

44120011031 has 4 divisors (see below), whose sum is σ = 44143369200. Its totient is φ = 44096652864.

The previous prime is 44120011021. The next prime is 44120011043. The reversal of 44120011031 is 13011002144.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 44120011031 - 26 = 44120010967 is a prime.

It is a super-2 number, since 2×441200110312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44120011021) 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, 11676251 + ... + 11680028.

It is an arithmetic number, because the mean of its divisors is an integer number (11035842300).

Almost surely, 244120011031 is an apocalyptic number.

44120011031 is a deficient number, since it is larger than the sum of its proper divisors (23358169).

44120011031 is a wasteful number, since it uses less digits than its factorization.

44120011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23358168.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 44120011031 its reverse (13011002144), we get a palindrome (57131013175).

The spelling of 44120011031 in words is "forty-four billion, one hundred twenty million, eleven thousand, thirty-one".

Divisors: 1 1889 23356279 44120011031