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11210012020 = 2251493761749
BaseRepresentation
bin10100111000010101…
…10011010101110100
31001221020121121120101
422130022303111310
5140424230341040
65052205243444
7544536346534
oct123412632564
931836547511
1011210012020
114832839a49
12220a263584
1310985a8b0c
14784b3b4c4
1545922509a
hex29c2b3574

11210012020 has 24 divisors (see below), whose sum is σ = 23699025000. Its totient is φ = 4453909632.

The previous prime is 11210012017. The next prime is 11210012059. The reversal of 11210012020 is 2021001211.

11210012020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 63297936 + 11146714084 = 7956^2 + 105578^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11210011988 and 11210012006.

It is a congruent 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, 1877895 + ... + 1883854.

It is an arithmetic number, because the mean of its divisors is an integer number (987459375).

Almost surely, 211210012020 is an apocalyptic number.

11210012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11210012020 is an abundant number, since it is smaller than the sum of its proper divisors (12489012980).

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

11210012020 is a wasteful number, since it uses less digits than its factorization.

11210012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761907 (or 3761905 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11210012020 its reverse (2021001211), we get a palindrome (13231013231).

The spelling of 11210012020 in words is "eleven billion, two hundred ten million, twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 149 298 596 745 1490 2980 3761749 7523498 15046996 18808745 37617490 75234980 560500601 1121001202 2242002404 2802503005 5605006010 11210012020