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40030223 = 172718689
BaseRepresentation
bin1001100010110…
…1000000001111
32210022202010212
42120231000033
540221431343
63545553035
7664152122
oct230550017
983282125
1040030223
1120661332
12114a577b
1383a752c
1454603b9
1537aac18
hex262d00f

40030223 has 8 divisors (see below), whose sum is σ = 42546240. Its totient is φ = 37532160.

The previous prime is 40030219. The next prime is 40030231. The reversal of 40030223 is 32203004.

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 40030223 - 22 = 40030219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40030198 and 40030207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40000223) 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, 263 + ... + 8951.

It is an arithmetic number, because the mean of its divisors is an integer number (5318280).

Almost surely, 240030223 is an apocalyptic number.

40030223 is a deficient number, since it is larger than the sum of its proper divisors (2516017).

40030223 is a wasteful number, since it uses less digits than its factorization.

40030223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 40030223 is about 6326.9442071193. The cubic root of 40030223 is about 342.0813019892.

Adding to 40030223 its reverse (32203004), we get a palindrome (72233227).

The spelling of 40030223 in words is "forty million, thirty thousand, two hundred twenty-three".

Divisors: 1 17 271 4607 8689 147713 2354719 40030223