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10103211020 = 2257210309399
BaseRepresentation
bin10010110100011001…
…01100010000001100
3222002002222022000202
421122030230100030
5131142410223040
64350310513032
7505236606500
oct113214542014
928062868022
1010103211020
114314aa9a81
121b5b665778
13c501b6696
146bbb4c300
153e1e99015
hex25a32c40c

10103211020 has 36 divisors (see below), whose sum is σ = 24680703600. Its totient is φ = 3463957728.

The previous prime is 10103211007. The next prime is 10103211043. The reversal of 10103211020 is 2011230101.

It is a junction number, because it is equal to n+sod(n) for n = 10103210992 and 10103211010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5153720 + ... + 5155679.

It is an arithmetic number, because the mean of its divisors is an integer number (685575100).

Almost surely, 210103211020 is an apocalyptic number.

10103211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10103211020 is an abundant number, since it is smaller than the sum of its proper divisors (14577492580).

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

10103211020 is a wasteful number, since it uses less digits than its factorization.

10103211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10309422 (or 10309413 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10103211020 its reverse (2011230101), we get a palindrome (12114441121).

The spelling of 10103211020 in words is "ten billion, one hundred three million, two hundred eleven thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 10309399 20618798 41237596 51546995 72165793 103093990 144331586 206187980 288663172 360828965 505160551 721657930 1010321102 1443315860 2020642204 2525802755 5051605510 10103211020