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40105741 = 133085057
BaseRepresentation
bin1001100011111…
…1011100001101
32210110120201211
42120333130031
540231340431
63551334421
7664615234
oct230773415
983416654
1040105741
1120703045
1211521411
138402a10
14547db1b
1537c32b1
hex263f70d

40105741 has 4 divisors (see below), whose sum is σ = 43190812. Its totient is φ = 37020672.

The previous prime is 40105739. The next prime is 40105757. The reversal of 40105741 is 14750104.

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 26936100 + 13169641 = 5190^2 + 3629^2 .

It is not a de Polignac number, because 40105741 - 21 = 40105739 is a prime.

It is a super-2 number, since 2×401057412 = 3216940922318162, 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 (40105141) 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, 1542516 + ... + 1542541.

It is an arithmetic number, because the mean of its divisors is an integer number (10797703).

Almost surely, 240105741 is an apocalyptic number.

It is an amenable number.

40105741 is a deficient number, since it is larger than the sum of its proper divisors (3085071).

40105741 is a wasteful number, since it uses less digits than its factorization.

40105741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085070.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 40105741 is about 6332.9093630021. The cubic root of 40105741 is about 342.2962817868.

Adding to 40105741 its reverse (14750104), we get a palindrome (54855845).

The spelling of 40105741 in words is "forty million, one hundred five thousand, seven hundred forty-one".

Divisors: 1 13 3085057 40105741