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40500061 = 77973237
BaseRepresentation
bin1001101001111…
…1101101011101
32211012121122021
42122133231131
540332000221
64004020141
71001146660
oct232375535
984177567
1040500061
1120952328
1211691651
138510344
1455436d7
153850041
hex269fb5d

40500061 has 8 divisors (see below), whose sum is σ = 46872320. Its totient is φ = 34274448.

The previous prime is 40500059. The next prime is 40500071. The reversal of 40500061 is 16000504.

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 40500061 - 21 = 40500059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40500011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36066 + ... + 37171.

It is an arithmetic number, because the mean of its divisors is an integer number (5859040).

Almost surely, 240500061 is an apocalyptic number.

It is an amenable number.

40500061 is a deficient number, since it is larger than the sum of its proper divisors (6372259).

40500061 is an equidigital number, since it uses as much as digits as its factorization.

40500061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73323.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 40500061 is about 6363.9658232898. The cubic root of 40500061 is about 343.4144451797.

Adding to 40500061 its reverse (16000504), we get a palindrome (56500565).

The spelling of 40500061 in words is "forty million, five hundred thousand, sixty-one".

Divisors: 1 7 79 553 73237 512659 5785723 40500061