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40074541 = 133082657
BaseRepresentation
bin1001100011011…
…1110100101101
32210101222221021
42120313310231
540224341131
63550534141
7664425253
oct230676455
983358837
1040074541
1120691661
1211507351
1383c1760
1454725d3
1537b8e11
hex2637d2d

40074541 has 4 divisors (see below), whose sum is σ = 43157212. Its totient is φ = 36991872.

The previous prime is 40074539. The next prime is 40074547. The reversal of 40074541 is 14547004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1572516 + 38502025 = 1254^2 + 6205^2 .

It is a cyclic number.

It is not a de Polignac number, because 40074541 - 21 = 40074539 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 (40074547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1541316 + ... + 1541341.

It is an arithmetic number, because the mean of its divisors is an integer number (10789303).

Almost surely, 240074541 is an apocalyptic number.

It is an amenable number.

40074541 is a deficient number, since it is larger than the sum of its proper divisors (3082671).

40074541 is a wasteful number, since it uses less digits than its factorization.

40074541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082670.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 40074541 is about 6330.4455609380. The cubic root of 40074541 is about 342.2074963718.

The spelling of 40074541 in words is "forty million, seventy-four thousand, five hundred forty-one".

Divisors: 1 13 3082657 40074541