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220131002 = 27138291459
BaseRepresentation
bin11010001111011…
…10111010111010
3120100012210222002
431013232322322
5422323143002
633502101002
75312040230
oct1507567272
9510183862
10220131002
11103292753
126187a762
13367b5240
1421342950
15144d4002
hexd1eeeba

220131002 has 32 divisors (see below), whose sum is σ = 407164800. Its totient is φ = 86920128.

The previous prime is 220130987. The next prime is 220131047. The reversal of 220131002 is 200131022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150149 + ... + 151607.

It is an arithmetic number, because the mean of its divisors is an integer number (12723900).

Almost surely, 2220131002 is an apocalyptic number.

220131002 is a deficient number, since it is larger than the sum of its proper divisors (187033798).

220131002 is a wasteful number, since it uses less digits than its factorization.

220131002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 220131002 is about 14836.8123935029. The cubic root of 220131002 is about 603.8008732799.

Adding to 220131002 its reverse (200131022), we get a palindrome (420262024).

The spelling of 220131002 in words is "two hundred twenty million, one hundred thirty-one thousand, two".

Divisors: 1 2 7 13 14 26 91 182 829 1459 1658 2918 5803 10213 10777 11606 18967 20426 21554 37934 75439 132769 150878 265538 1209511 2419022 8466577 15723643 16933154 31447286 110065501 220131002