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40023701 is a prime number
BaseRepresentation
bin1001100010101…
…1011010010101
32210022102012022
42120223122111
540221224301
63545502525
7664124114
oct230533225
983272168
1040023701
1120657443
12114a1a45
1383a4583
14545bc7b
1537a8d1b
hex262b695

40023701 has 2 divisors, whose sum is σ = 40023702. Its totient is φ = 40023700.

The previous prime is 40023689. The next prime is 40023733. The reversal of 40023701 is 10732004.

It is a happy number.

40023701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35117476 + 4906225 = 5926^2 + 2215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40023701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40023701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40023791) 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, 20011850 + 20011851.

It is an arithmetic number, because the mean of its divisors is an integer number (20011851).

Almost surely, 240023701 is an apocalyptic number.

It is an amenable number.

40023701 is a deficient number, since it is larger than the sum of its proper divisors (1).

40023701 is an equidigital number, since it uses as much as digits as its factorization.

40023701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 40023701 is about 6326.4287714318. The cubic root of 40023701 is about 342.0627228985.

Adding to 40023701 its reverse (10732004), we get a palindrome (50755705).

The spelling of 40023701 in words is "forty million, twenty-three thousand, seven hundred one".