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40285761 = 389150883
BaseRepresentation
bin1001100110101…
…1011001000001
32210210201200020
42121223121001
540303121021
63555244053
7666265125
oct231533101
983721606
1040285761
112081631a
12115a9629
138466939
1454c9585
15380b7c6
hex266b641

40285761 has 8 divisors (see below), whose sum is σ = 54318240. Its totient is φ = 26555232.

The previous prime is 40285753. The next prime is 40285783. The reversal of 40285761 is 16758204.

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

It is not a de Polignac number, because 40285761 - 23 = 40285753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40285061) 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, 75175 + ... + 75708.

It is an arithmetic number, because the mean of its divisors is an integer number (6789780).

Almost surely, 240285761 is an apocalyptic number.

It is an amenable number.

40285761 is a deficient number, since it is larger than the sum of its proper divisors (14032479).

40285761 is a wasteful number, since it uses less digits than its factorization.

40285761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150975.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 40285761 is about 6347.1065061176. The cubic root of 40285761 is about 342.8076650080.

The spelling of 40285761 in words is "forty million, two hundred eighty-five thousand, seven hundred sixty-one".

Divisors: 1 3 89 267 150883 452649 13428587 40285761