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220138262 = 21496071217
BaseRepresentation
bin11010001111100…
…00101100010110
3120100020011220222
431013300230112
5422323411022
633502154342
75312100341
oct1507605426
9510204828
10220138262
11103298153
12618829b2
13367b8636
1421345458
15144d6242
hexd1f0b16

220138262 has 16 divisors (see below), whose sum is σ = 333244800. Its totient is φ = 109060608.

The previous prime is 220138229. The next prime is 220138279. The reversal of 220138262 is 262831022.

220138262 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180278 + ... + 181494.

It is an arithmetic number, because the mean of its divisors is an integer number (20827800).

Almost surely, 2220138262 is an apocalyptic number.

220138262 is a deficient number, since it is larger than the sum of its proper divisors (113106538).

220138262 is a wasteful number, since it uses less digits than its factorization.

220138262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 220138262 is about 14837.0570532030. The cubic root of 220138262 is about 603.8075110640.

Adding to 220138262 its reverse (262831022), we get a palindrome (482969284).

The spelling of 220138262 in words is "two hundred twenty million, one hundred thirty-eight thousand, two hundred sixty-two".

Divisors: 1 2 149 298 607 1214 1217 2434 90443 180886 181333 362666 738719 1477438 110069131 220138262