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40957705 = 537221393
BaseRepresentation
bin1001110000111…
…1011100001001
32212001212102001
42130033130021
540441121310
64021511001
71005064135
oct234173411
985055361
1040957705
1121135148
1211872461
138640739
1456223c5
1538e093a
hex270f709

40957705 has 8 divisors (see below), whose sum is σ = 50477832. Its totient is φ = 31880448.

The previous prime is 40957667. The next prime is 40957753. The reversal of 40957705 is 50775904.

40957705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 17065161 + 23892544 = 4131^2 + 4888^2 .

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 40957705 - 225 = 7403273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is an unprimeable number.

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, 110512 + ... + 110881.

It is an arithmetic number, because the mean of its divisors is an integer number (6309729).

Almost surely, 240957705 is an apocalyptic number.

It is an amenable number.

40957705 is a deficient number, since it is larger than the sum of its proper divisors (9520127).

40957705 is a wasteful number, since it uses less digits than its factorization.

40957705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221435.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 40957705 is about 6399.8207006134. The cubic root of 40957705 is about 344.7031122281.

The spelling of 40957705 in words is "forty million, nine hundred fifty-seven thousand, seven hundred five".

Divisors: 1 5 37 185 221393 1106965 8191541 40957705