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220131042 = 2365955673
BaseRepresentation
bin11010001111011…
…10111011100010
3120100012211000120
431013232323202
5422323143132
633502101110
75312040315
oct1507567342
9510184016
10220131042
1110329278a
126187a796
13367b5271
142134297c
15144d402c
hexd1eeee2

220131042 has 16 divisors (see below), whose sum is σ = 440938080. Its totient is φ = 73264352.

The previous prime is 220130987. The next prime is 220131047. The reversal of 220131042 is 240131022.

It is not an unprimeable number, because it can be changed into a prime (220131047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23883 + ... + 31790.

It is an arithmetic number, because the mean of its divisors is an integer number (27558630).

Almost surely, 2220131042 is an apocalyptic number.

220131042 is an abundant number, since it is smaller than the sum of its proper divisors (220807038).

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

220131042 is a wasteful number, since it uses less digits than its factorization.

220131042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56337.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 220131042 is about 14836.8137415012. The cubic root of 220131042 is about 603.8009098521.

Adding to 220131042 its reverse (240131022), we get a palindrome (460262064).

The spelling of 220131042 in words is "two hundred twenty million, one hundred thirty-one thousand, forty-two".

Divisors: 1 2 3 6 659 1318 1977 3954 55673 111346 167019 334038 36688507 73377014 110065521 220131042