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220242442 = 27139113177
BaseRepresentation
bin11010010000010…
…10001000001010
3120100102110211111
431020022020022
5422340224232
633504320534
75313013150
oct1510121012
9510373744
10220242442
11103359452
126191314a
1336823b94
14213713d0
1514507047
hexd20a20a

220242442 has 16 divisors (see below), whose sum is σ = 380278080. Its totient is φ = 93709728.

The previous prime is 220242403. The next prime is 220242479. The reversal of 220242442 is 244242022.

It is a happy 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, 54643 + ... + 58534.

It is an arithmetic number, because the mean of its divisors is an integer number (23767380).

Almost surely, 2220242442 is an apocalyptic number.

220242442 is a deficient number, since it is larger than the sum of its proper divisors (160035638).

220242442 is a wasteful number, since it uses less digits than its factorization.

220242442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113325.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 220242442 is about 14840.5674419815. The cubic root of 220242442 is about 603.9027462817.

Adding to 220242442 its reverse (244242022), we get a palindrome (464484464).

It can be divided in two parts, 2202 and 42442, that added together give a palindrome (44644).

The spelling of 220242442 in words is "two hundred twenty million, two hundred forty-two thousand, four hundred forty-two".

Divisors: 1 2 7 14 139 278 973 1946 113177 226354 792239 1584478 15731603 31463206 110121221 220242442