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40089646 = 220044823
BaseRepresentation
bin1001100011101…
…1100000101110
32210102202122201
42120323200232
540230332041
63551132114
7664520302
oct230734056
983382581
1040089646
11206a1a43
121151403a
1383c85ac
145477d02
1537bd631
hex263b82e

40089646 has 4 divisors (see below), whose sum is σ = 60134472. Its totient is φ = 20044822.

The previous prime is 40089641. The next prime is 40089649. The reversal of 40089646 is 64698004.

40089646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40089641) by changing a digit.

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 as a sum of consecutive naturals, namely, 10022410 + ... + 10022413.

It is an arithmetic number, because the mean of its divisors is an integer number (15033618).

Almost surely, 240089646 is an apocalyptic number.

40089646 is a deficient number, since it is larger than the sum of its proper divisors (20044826).

40089646 is a wasteful number, since it uses less digits than its factorization.

40089646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20044825.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 40089646 is about 6331.6384925231. The cubic root of 40089646 is about 342.2504862169.

The spelling of 40089646 in words is "forty million, eighty-nine thousand, six hundred forty-six".

Divisors: 1 2 20044823 40089646