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220120422 = 23285712841
BaseRepresentation
bin11010001111011…
…00010101100110
3120100012021110020
431013230111212
5422322323142
633501540010
75311664334
oct1507542546
9510167406
10220120422
11103285805
1261874606
13367b0492
142133cb54
15144d0cec
hexd1ec566

220120422 has 16 divisors (see below), whose sum is σ = 440429232. Its totient is φ = 73342080.

The previous prime is 220120409. The next prime is 220120427. The reversal of 220120422 is 224021022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220120427) 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, 10722 + ... + 23562.

It is an arithmetic number, because the mean of its divisors is an integer number (27526827).

Almost surely, 2220120422 is an apocalyptic number.

220120422 is an abundant number, since it is smaller than the sum of its proper divisors (220308810).

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

220120422 is a wasteful number, since it uses less digits than its factorization.

220120422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15703.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 220120422 is about 14836.4558436306. The cubic root of 220120422 is about 603.7911997741.

Adding to 220120422 its reverse (224021022), we get a palindrome (444141444).

The spelling of 220120422 in words is "two hundred twenty million, one hundred twenty thousand, four hundred twenty-two".

Divisors: 1 2 3 6 2857 5714 8571 12841 17142 25682 38523 77046 36686737 73373474 110060211 220120422