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10120444031 = 19231389567
BaseRepresentation
bin10010110110011100…
…11011100001111111
3222010022101211021102
421123032123201333
5131211313202111
64352124123315
7505536232505
oct113316334177
928108354242
1010120444031
1143237aa435
121b6539653b
13c5393b529
146c0156675
153e375013b
hex25b39b87f

10120444031 has 12 divisors (see below), whose sum is σ = 10715378112. Its totient is φ = 9557050464.

The previous prime is 10120444027. The next prime is 10120444051. The reversal of 10120444031 is 13044402101.

It is not a de Polignac number, because 10120444031 - 22 = 10120444027 is a prime.

It is a super-2 number, since 2×101204440312 (a number of 21 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 = 10120443994 and 10120444012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120444051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68210 + ... + 157776.

It is an arithmetic number, because the mean of its divisors is an integer number (892948176).

Almost surely, 210120444031 is an apocalyptic number.

10120444031 is a deficient number, since it is larger than the sum of its proper divisors (594934081).

10120444031 is an equidigital number, since it uses as much as digits as its factorization.

10120444031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89918 (or 89899 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10120444031 its reverse (13044402101), we get a palindrome (23164846132).

The spelling of 10120444031 in words is "ten billion, one hundred twenty million, four hundred forty-four thousand, thirty-one".

Divisors: 1 19 313 361 5947 89567 112993 1701773 28034471 32333687 532654949 10120444031