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1011010220 = 2251117092689
BaseRepresentation
bin111100010000101…
…100101010101100
32121110101122021222
4330100230222230
54032304311340
6244153242512
734024305443
oct7420545254
92543348258
101011010220
11479763a40
12242703438
131315c37cc
14983b5d5a
155db588b5
hex3c42caac

1011010220 has 48 divisors (see below), whose sum is σ = 2318349600. Its totient is φ = 367288320.

The previous prime is 1011010219. The next prime is 1011010229. The reversal of 1011010220 is 220101101.

It is a junction number, because it is equal to n+sod(n) for n = 1011010198 and 1011010207.

It is not an unprimeable number, because it can be changed into a prime (1011010229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374636 + ... + 377324.

It is an arithmetic number, because the mean of its divisors is an integer number (48298950).

Almost surely, 21011010220 is an apocalyptic number.

1011010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011010220 is an abundant number, since it is smaller than the sum of its proper divisors (1307339380).

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

1011010220 is a wasteful number, since it uses less digits than its factorization.

1011010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4418 (or 4416 counting only the distinct ones).

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

The square root of 1011010220 is about 31796.3869016591. The cubic root of 1011010220 is about 1003.6566856849.

Adding to 1011010220 its reverse (220101101), we get a palindrome (1231111321).

The spelling of 1011010220 in words is "one billion, eleven million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1709 2689 3418 5378 6836 8545 10756 13445 17090 18799 26890 29579 34180 37598 53780 59158 75196 93995 118316 147895 187990 295790 375980 591580 4595501 9191002 18382004 22977505 45955010 50550511 91910020 101101022 202202044 252752555 505505110 1011010220