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10112100220 = 2251792824609
BaseRepresentation
bin10010110101011101…
…00110011101111100
3222002201200220201101
421122232212131330
5131202144201340
64351225222444
7505405301515
oct113256463574
928081626641
1010112100220
11431a020622
121b62631a24
13c51ca9771
146bcdc3a0c
153e2b52c9a
hex25aba677c

10112100220 has 24 divisors (see below), whose sum is σ = 21354051600. Its totient is φ = 4022241792.

The previous prime is 10112100209. The next prime is 10112100227. The reversal of 10112100220 is 2200121101.

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 = 10112100197 and 10112100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112100227) 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, 1408725 + ... + 1415884.

It is an arithmetic number, because the mean of its divisors is an integer number (889752150).

Almost surely, 210112100220 is an apocalyptic number.

10112100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10112100220 is an abundant number, since it is smaller than the sum of its proper divisors (11241951380).

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

10112100220 is a wasteful number, since it uses less digits than its factorization.

10112100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824797 (or 2824795 counting only the distinct ones).

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

Adding to 10112100220 its reverse (2200121101), we get a palindrome (12312221321).

The spelling of 10112100220 in words is "ten billion, one hundred twelve million, one hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 179 358 716 895 1790 3580 2824609 5649218 11298436 14123045 28246090 56492180 505605011 1011210022 2022420044 2528025055 5056050110 10112100220