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40805007 = 382716447
BaseRepresentation
bin1001101110101…
…0001010001111
32211210002221120
42123222022033
540421230012
64014332023
71003560015
oct233521217
984702846
1040805007
1121040451
12117ba013
1385b9099
1455c28b5
1538b058c
hex26ea28f

40805007 has 8 divisors (see below), whose sum is σ = 54475776. Its totient is φ = 27168792.

The previous prime is 40804997. The next prime is 40805033. The reversal of 40805007 is 70050804.

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

It is not a de Polignac number, because 40805007 - 212 = 40800911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40805047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5743 + ... + 10704.

It is an arithmetic number, because the mean of its divisors is an integer number (6809472).

Almost surely, 240805007 is an apocalyptic number.

40805007 is a deficient number, since it is larger than the sum of its proper divisors (13670769).

40805007 is a wasteful number, since it uses less digits than its factorization.

40805007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17277.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 40805007 is about 6387.8796951727. The cubic root of 40805007 is about 344.2742061709.

The spelling of 40805007 in words is "forty million, eight hundred five thousand, seven".

Divisors: 1 3 827 2481 16447 49341 13601669 40805007