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222003431 = 13311374021
BaseRepresentation
bin11010011101110…
…00000011100111
3120110201221110022
431032320003213
5423313102211
634010145355
75333666216
oct1516700347
9513657408
10222003431
11104351511
126242225b
1336cbc5a0
14216ad07d
1514753bdb
hexd3b80e7

222003431 has 16 divisors (see below), whose sum is σ = 248656128. Its totient is φ = 196819200.

The previous prime is 222003421. The next prime is 222003443. The reversal of 222003431 is 134300222.

It is a cyclic number.

It is not a de Polignac number, because 222003431 - 214 = 221987047 is a prime.

It is a super-2 number, since 2×2220034312 = 98571046751543522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222003401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53201 + ... + 57221.

It is an arithmetic number, because the mean of its divisors is an integer number (15541008).

Almost surely, 2222003431 is an apocalyptic number.

222003431 is a deficient number, since it is larger than the sum of its proper divisors (26652697).

222003431 is a wasteful number, since it uses less digits than its factorization.

222003431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 222003431 is about 14899.7795621278. The cubic root of 222003431 is about 605.5080139853.

Adding to 222003431 its reverse (134300222), we get a palindrome (356303653).

The spelling of 222003431 in words is "two hundred twenty-two million, three thousand, four hundred thirty-one".

Divisors: 1 13 31 137 403 1781 4021 4247 52273 55211 124651 550877 1620463 7161401 17077187 222003431