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40007269 = 2913110531
BaseRepresentation
bin1001100010011…
…1011001100101
32210021120122201
42120213121211
540220213034
63545254501
7664025161
oct230473145
983246581
1040007269
1120646065
1211494431
138399c53
145455ca1
1537a4014
hex2627665

40007269 has 8 divisors (see below), whose sum is σ = 41706720. Its totient is φ = 38329200.

The previous prime is 40007263. The next prime is 40007309. The reversal of 40007269 is 96270004.

40007269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40007269 - 25 = 40007237 is a prime.

It is a super-2 number, since 2×400072692 = 3201163145676722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40007263) 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 in 7 ways as a sum of consecutive naturals, for example, 1467 + ... + 9064.

It is an arithmetic number, because the mean of its divisors is an integer number (5213340).

Almost surely, 240007269 is an apocalyptic number.

It is an amenable number.

40007269 is a deficient number, since it is larger than the sum of its proper divisors (1699451).

40007269 is a wasteful number, since it uses less digits than its factorization.

40007269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10691.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40007269 is about 6325.1299591392. The cubic root of 40007269 is about 342.0159044392.

The spelling of 40007269 in words is "forty million, seven thousand, two hundred sixty-nine".

Divisors: 1 29 131 3799 10531 305399 1379561 40007269