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2220222090 = 235109821827
BaseRepresentation
bin1000010001010101…
…1110011010001010
312201201201222010210
42010111132122022
514021334101330
61004151021550
7106006401462
oct20425363212
95651658123
102220222090
11a3a291799
1251b66a8b6
13294c91ba8
14170c22ba2
15cedb38b0
hex8455e68a

2220222090 has 64 divisors (see below), whose sum is σ = 5390478720. Its totient is φ = 585204480.

The previous prime is 2220222089. The next prime is 2220222127. The reversal of 2220222090 is 902220222.

It is a super-2 number, since 2×22202220902 = 9858772257847936200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2684257 + ... + 2685083.

It is an arithmetic number, because the mean of its divisors is an integer number (84226230).

Almost surely, 22220222090 is an apocalyptic number.

2220222090 is an abundant number, since it is smaller than the sum of its proper divisors (3170256630).

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

2220222090 is a wasteful number, since it uses less digits than its factorization.

2220222090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2220222090 is about 47119.2326974878. The cubic root of 2220222090 is about 1304.5642502236.

The spelling of 2220222090 in words is "two billion, two hundred twenty million, two hundred twenty-two thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 109 218 327 545 654 821 827 1090 1635 1642 1654 2463 2481 3270 4105 4135 4926 4962 8210 8270 12315 12405 24630 24810 89489 90143 178978 180286 268467 270429 447445 450715 536934 540858 678967 894890 901430 1342335 1352145 1357934 2036901 2684670 2704290 3394835 4073802 6789670 10184505 20369010 74007403 148014806 222022209 370037015 444044418 740074030 1110111045 2220222090