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220201431 = 3193863183
BaseRepresentation
bin11010010000000…
…00000111010111
3120100100101120120
431020000013113
5422332421211
633503403023
75312452452
oct1510000727
9510311516
10220201431
1110333065a
12618b3473
133680b308
1421360499
15144e9d06
hexd2001d7

220201431 has 8 divisors (see below), whose sum is σ = 309054720. Its totient is φ = 139074552.

The previous prime is 220201381. The next prime is 220201441. The reversal of 220201431 is 134102022.

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

It is not a de Polignac number, because 220201431 - 218 = 219939287 is a prime.

It is a super-2 number, since 2×2202014312 = 96977340428895522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220201431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1931535 + ... + 1931648.

It is an arithmetic number, because the mean of its divisors is an integer number (38631840).

Almost surely, 2220201431 is an apocalyptic number.

220201431 is a deficient number, since it is larger than the sum of its proper divisors (88853289).

220201431 is a wasteful number, since it uses less digits than its factorization.

220201431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863205.

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

The square root of 220201431 is about 14839.1856582496. The cubic root of 220201431 is about 603.8652600268.

Adding to 220201431 its reverse (134102022), we get a palindrome (354303453).

The spelling of 220201431 in words is "two hundred twenty million, two hundred one thousand, four hundred thirty-one".

Divisors: 1 3 19 57 3863183 11589549 73400477 220201431