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10013031020 = 2253713531123
BaseRepresentation
bin10010101001101001…
…01011101001101100
3221211211021200022202
421110310223221230
5131001313443040
64333330001032
7503063234156
oct112464535154
927754250282
1010013031020
114279105453
121b35416178
13c37600835
146adb95ad6
153d90d4015
hex254d2ba6c

10013031020 has 24 divisors (see below), whose sum is σ = 21595673904. Its totient is φ = 3896963136.

The previous prime is 10013031013. The next prime is 10013031043. The reversal of 10013031020 is 2013031001.

10013031020 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 = 10013030992 and 10013031010.

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, 6764822 + ... + 6766301.

It is an arithmetic number, because the mean of its divisors is an integer number (899819746).

Almost surely, 210013031020 is an apocalyptic number.

10013031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10013031020 is an abundant number, since it is smaller than the sum of its proper divisors (11582642884).

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

10013031020 is a wasteful number, since it uses less digits than its factorization.

10013031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13531169 (or 13531167 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 10013031020 its reverse (2013031001), we get a palindrome (12026062021).

The spelling of 10013031020 in words is "ten billion, thirteen million, thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 13531123 27062246 54124492 67655615 135311230 270622460 500651551 1001303102 2002606204 2503257755 5006515510 10013031020