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220142131 = 1123870127
BaseRepresentation
bin11010001111100…
…01101000110011
3120100020101020021
431013301220303
5422324022011
633502224311
75312114536
oct1507615063
9510211207
10220142131
111032a0050
1261885097
13367ba321
1421346a1d
15144d7471
hexd1f1a33

220142131 has 8 divisors (see below), whose sum is σ = 250596864. Its totient is φ = 191427720.

The previous prime is 220142089. The next prime is 220142137. The reversal of 220142131 is 131241022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220142131 - 215 = 220109363 is a prime.

It is a super-2 number, since 2×2201421312 = 96925115682442322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220142137) 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, 434811 + ... + 435316.

It is an arithmetic number, because the mean of its divisors is an integer number (31324608).

Almost surely, 2220142131 is an apocalyptic number.

220142131 is a deficient number, since it is larger than the sum of its proper divisors (30454733).

220142131 is a wasteful number, since it uses less digits than its factorization.

220142131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870161.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 220142131 is about 14837.1874356294. The cubic root of 220142131 is about 603.8110484129.

Adding to 220142131 its reverse (131241022), we get a palindrome (351383153).

The spelling of 220142131 in words is "two hundred twenty million, one hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 11 23 253 870127 9571397 20012921 220142131