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10011100220 = 2251145505001
BaseRepresentation
bin10010101001011010…
…10100010000111100
3221211200122120202122
421110231110100330
5131000320201340
64333220342112
7503040643052
oct112455242074
927750576678
1010011100220
114278006850
121b34844938
13c370a5a54
146ad8121d2
153d8d51db5
hex254b5443c

10011100220 has 24 divisors (see below), whose sum is σ = 22934521008. Its totient is φ = 3640400000.

The previous prime is 10011100219. The next prime is 10011100223. The reversal of 10011100220 is 2200111001.

It is a super-2 number, since 2×100111002202 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10011100198 and 10011100207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011100223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22752281 + ... + 22752720.

It is an arithmetic number, because the mean of its divisors is an integer number (955605042).

Almost surely, 210011100220 is an apocalyptic number.

10011100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011100220 is an abundant number, since it is smaller than the sum of its proper divisors (12923420788).

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

10011100220 is a wasteful number, since it uses less digits than its factorization.

10011100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45505021 (or 45505019 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10011100220 its reverse (2200111001), we get a palindrome (12211211221).

The spelling of 10011100220 in words is "ten billion, eleven million, one hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 45505001 91010002 182020004 227525005 455050010 500555011 910100020 1001110022 2002220044 2502775055 5005550110 10011100220