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10031043020 = 225678390191
BaseRepresentation
bin10010101011110010…
…11001000111001100
3221220002011210010212
421111321121013030
5131020421334040
64335212021552
7503402313245
oct112571310714
927802153125
1010031043020
1142882980a9
121b3b4618b8
13c3b26911b
146b2323ccc
153da990d65
hex255e591cc

10031043020 has 48 divisors (see below), whose sum is σ = 21637421568. Its totient is φ = 3904866240.

The previous prime is 10031043019. The next prime is 10031043031. The reversal of 10031043020 is 2034013001.

10031043020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10031042986 and 10031043004.

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 15 ways as a sum of consecutive naturals, for example, 66125 + ... + 156315.

It is an arithmetic number, because the mean of its divisors is an integer number (450779616).

Almost surely, 210031043020 is an apocalyptic number.

10031043020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10031043020 is an abundant number, since it is smaller than the sum of its proper divisors (11606378548).

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

10031043020 is a wasteful number, since it uses less digits than its factorization.

10031043020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90350 (or 90348 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 10031043020 its reverse (2034013001), we get a palindrome (12065056021).

The spelling of 10031043020 in words is "ten billion, thirty-one million, forty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 67 83 134 166 268 332 335 415 670 830 1340 1660 5561 11122 22244 27805 55610 90191 111220 180382 360764 450955 901910 1803820 6042797 7485853 12085594 14971706 24171188 29943412 30213985 37429265 60427970 74858530 120855940 149717060 501552151 1003104302 2006208604 2507760755 5015521510 10031043020