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40030558 = 247425857
BaseRepresentation
bin1001100010110…
…1000101011110
32210022202121021
42120231011132
540221434213
63545554354
7664153111
oct230550536
983282537
1040030558
1120661607
12114a59ba
1383a7729
145460578
1537aad8d
hex262d15e

40030558 has 8 divisors (see below), whose sum is σ = 61323552. Its totient is φ = 19589376.

The previous prime is 40030513. The next prime is 40030561. The reversal of 40030558 is 85503004.

It is a happy number.

40030558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×400305583 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212835 + ... + 213022.

It is an arithmetic number, because the mean of its divisors is an integer number (7665444).

Almost surely, 240030558 is an apocalyptic number.

40030558 is a deficient number, since it is larger than the sum of its proper divisors (21292994).

40030558 is a wasteful number, since it uses less digits than its factorization.

40030558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425906.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 40030558 is about 6326.9706811396. The cubic root of 40030558 is about 342.0822562425.

The spelling of 40030558 in words is "forty million, thirty thousand, five hundred fifty-eight".

Divisors: 1 2 47 94 425857 851714 20015279 40030558