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31441004031 = 3100910386853
BaseRepresentation
bin11101010010000001…
…111010010111111111
310000011011210111021210
4131102001322113333
51003342344112111
622235505455503
72162065060533
oct352201722777
9100134714253
1031441004031
1112374699758
126115641593
132c70a9c3c8
141743991bc3
15c403bd0a6
hex75207a5ff

31441004031 has 8 divisors (see below), whose sum is σ = 41962890160. Its totient is φ = 20939893632.

The previous prime is 31441004029. The next prime is 31441004041. The reversal of 31441004031 is 13040014413.

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

It is not a de Polignac number, because 31441004031 - 21 = 31441004029 is a prime.

It is a super-2 number, since 2×314410040312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31441003989 and 31441004007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31441004011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5190400 + ... + 5196453.

It is an arithmetic number, because the mean of its divisors is an integer number (5245361270).

Almost surely, 231441004031 is an apocalyptic number.

31441004031 is a deficient number, since it is larger than the sum of its proper divisors (10521886129).

31441004031 is a wasteful number, since it uses less digits than its factorization.

31441004031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10387865.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31441004031 its reverse (13040014413), we get a palindrome (44481018444).

The spelling of 31441004031 in words is "thirty-one billion, four hundred forty-one million, four thousand, thirty-one".

Divisors: 1 3 1009 3027 10386853 31160559 10480334677 31441004031