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31442041160 = 2355631396183
BaseRepresentation
bin11101010010000101…
…110111100101001000
310000011020202011221222
4131102011313211020
51003343130304120
622235544021212
72162106640325
oct352205674510
9100136664858
1031442041160
1112375237992
126115a61808
132c710734aa
141743b81b4c
15c40525525
hex752177948

31442041160 has 32 divisors (see below), whose sum is σ = 70870299840. Its totient is φ = 12554468544.

The previous prime is 31442041133. The next prime is 31442041171. The reversal of 31442041160 is 6114024413.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 675572 + ... + 720611.

It is an arithmetic number, because the mean of its divisors is an integer number (2214696870).

Almost surely, 231442041160 is an apocalyptic number.

It is an amenable number.

31442041160 is an abundant number, since it is smaller than the sum of its proper divisors (39428258680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31442041160 is a wasteful number, since it uses less digits than its factorization.

31442041160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396757 (or 1396753 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 31442041160 its reverse (6114024413), we get a palindrome (37556065573).

The spelling of 31442041160 in words is "thirty-one billion, four hundred forty-two million, forty-one thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 563 1126 2252 2815 4504 5630 11260 22520 1396183 2792366 5584732 6980915 11169464 13961830 27923660 55847320 786051029 1572102058 3144204116 3930255145 6288408232 7860510290 15721020580 31442041160