Search a number
-
+
40868793 = 34731471
BaseRepresentation
bin1001101111100…
…1101110111001
32211220100110000
42123321232321
540430300133
64015543213
71004244000
oct233715671
984810400
1040868793
1121084369
121182ab09
13860c124
1455dbc37
1538c4413
hex26f9bb9

40868793 has 40 divisors (see below), whose sum is σ = 71244800. Its totient is φ = 23337720.

The previous prime is 40868783. The next prime is 40868797. The reversal of 40868793 is 39786804.

It is a happy number.

It is not a de Polignac number, because 40868793 - 28 = 40868537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40868797) 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 39 ways as a sum of consecutive naturals, for example, 27048 + ... + 28518.

It is an arithmetic number, because the mean of its divisors is an integer number (1781120).

Almost surely, 240868793 is an apocalyptic number.

It is an amenable number.

40868793 is a deficient number, since it is larger than the sum of its proper divisors (30376007).

40868793 is an equidigital number, since it uses as much as digits as its factorization.

40868793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504 (or 1481 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 40868793 is about 6392.8704820292. The cubic root of 40868793 is about 344.4535015039.

The spelling of 40868793 in words is "forty million, eight hundred sixty-eight thousand, seven hundred ninety-three".

Divisors: 1 3 7 9 21 27 49 63 81 147 189 343 441 567 1029 1323 1471 3087 3969 4413 9261 10297 13239 27783 30891 39717 72079 92673 119151 216237 278019 504553 648711 834057 1513659 1946133 4540977 5838399 13622931 40868793