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1010112220 = 225133885047
BaseRepresentation
bin111100001101010…
…001011011011100
32121101201000110201
4330031101123130
54032042042340
6244122113244
734013545405
oct7415213334
92541630421
101010112220
11479200297
1224234b824
1313136ab50
14982209ac
155da2c79a
hex3c3516dc

1010112220 has 24 divisors (see below), whose sum is σ = 2284408224. Its totient is φ = 372964416.

The previous prime is 1010112193. The next prime is 1010112223. The reversal of 1010112220 is 222110101.

It is a super-3 number, since 3×10101122203 (a number of 28 digits) contains 333 as substring.

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 = 1010112197 and 1010112206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010112223) 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, 1942264 + ... + 1942783.

It is an arithmetic number, because the mean of its divisors is an integer number (95183676).

Almost surely, 21010112220 is an apocalyptic number.

1010112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010112220 is an abundant number, since it is smaller than the sum of its proper divisors (1274296004).

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

1010112220 is a wasteful number, since it uses less digits than its factorization.

1010112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885069 (or 3885067 counting only the distinct ones).

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

The square root of 1010112220 is about 31782.2626633158. The cubic root of 1010112220 is about 1003.3594415147.

Adding to 1010112220 its reverse (222110101), we get a palindrome (1232222321).

The spelling of 1010112220 in words is "one billion, ten million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 3885047 7770094 15540188 19425235 38850470 50505611 77700940 101011222 202022444 252528055 505056110 1010112220