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2213243031 = 32399307523
BaseRepresentation
bin1000001111101011…
…0110100010010111
312201020121101200010
42003322312202113
514013042234111
61003341251303
7105563153406
oct20372664227
95636541603
102213243031
11a3635527a
12519263b33
132936ba37c
1416dd2763d
15ce485aa6
hex83eb6897

2213243031 has 8 divisors (see below), whose sum is σ = 2952230400. Its totient is φ = 1474875512.

The previous prime is 2213243003. The next prime is 2213243051. The reversal of 2213243031 is 1303423122.

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

It is a cyclic number.

It is not a de Polignac number, because 2213243031 - 213 = 2213234839 is a prime.

It is a super-2 number, since 2×22132430312 = 9796889428540133922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2213242989 and 2213243007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213243051) 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, 146565 + ... + 160958.

It is an arithmetic number, because the mean of its divisors is an integer number (369028800).

Almost surely, 22213243031 is an apocalyptic number.

2213243031 is a deficient number, since it is larger than the sum of its proper divisors (738987369).

2213243031 is a wasteful number, since it uses less digits than its factorization.

2213243031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309925.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2213243031 is about 47045.1169729654. The cubic root of 2213243031 is about 1303.1958905060.

Adding to 2213243031 its reverse (1303423122), we get a palindrome (3516666153).

The spelling of 2213243031 in words is "two billion, two hundred thirteen million, two hundred forty-three thousand, thirty-one".

Divisors: 1 3 2399 7197 307523 922569 737747677 2213243031