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220890926 = 2591871957
BaseRepresentation
bin11010010101010…
…00011100101110
3120101122102101102
431022220130232
5423022002201
633530243102
75321353604
oct1512503456
9511572342
10220890926
11103761693
1261b86492
13369c00b9
142149d874
15145d426b
hexd2a872e

220890926 has 8 divisors (see below), whose sum is σ = 336952440. Its totient is φ = 108573448.

The previous prime is 220890889. The next prime is 220890947. The reversal of 220890926 is 629098022.

220890926 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2208909263 (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220890926.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935861 + ... + 936096.

It is an arithmetic number, because the mean of its divisors is an integer number (42119055).

Almost surely, 2220890926 is an apocalyptic number.

220890926 is a deficient number, since it is larger than the sum of its proper divisors (116061514).

220890926 is a wasteful number, since it uses less digits than its factorization.

220890926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872018.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 220890926 is about 14862.3997389385. The cubic root of 220890926 is about 604.4948778860.

The spelling of 220890926 in words is "two hundred twenty million, eight hundred ninety thousand, nine hundred twenty-six".

Divisors: 1 2 59 118 1871957 3743914 110445463 220890926