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2223400631 = 31191375511
BaseRepresentation
bin1000010010000110…
…0110011010110111
312201221201110021112
42010201212122313
514023142310011
61004343105235
7106045410404
oct20441463267
95657643245
102223400631
11a41062891
1252074221b
1329583589a
1417140d2ab
15d02e058b
hex848666b7

2223400631 has 8 divisors (see below), whose sum is σ = 2307145728. Its totient is φ = 2140407000.

The previous prime is 2223400601. The next prime is 2223400643. The reversal of 2223400631 is 1360043222.

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 2223400631 - 218 = 2223138487 is a prime.

It is a super-2 number, since 2×22234006312 = 9887020731862396322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2223400597 and 2223400606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223400601) 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, 181835 + ... + 193676.

It is an arithmetic number, because the mean of its divisors is an integer number (288393216).

Almost surely, 22223400631 is an apocalyptic number.

2223400631 is a deficient number, since it is larger than the sum of its proper divisors (83745097).

2223400631 is a wasteful number, since it uses less digits than its factorization.

2223400631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375733.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2223400631 is about 47152.9493351158. The cubic root of 2223400631 is about 1305.1865053485.

Adding to 2223400631 its reverse (1360043222), we get a palindrome (3583443853).

The spelling of 2223400631 in words is "two billion, two hundred twenty-three million, four hundred thousand, six hundred thirty-one".

Divisors: 1 31 191 5921 375511 11640841 71722601 2223400631