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40125471 = 3191239293
BaseRepresentation
bin1001100100010…
…0010000011111
32210111120210120
42121010100133
540233003341
63552010023
7665026611
oct231042037
983446716
1040125471
1120716951
1211530913
13840b9a9
145486db1
1537c9066
hex264441f

40125471 has 16 divisors (see below), whose sum is σ = 54190080. Its totient is φ = 26408480.

The previous prime is 40125469. The next prime is 40125479. The reversal of 40125471 is 17452104.

It is a cyclic number.

It is not a de Polignac number, because 40125471 - 21 = 40125469 is a prime.

It is a super-3 number, since 3×401254713 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40125479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136801 + ... + 137093.

It is an arithmetic number, because the mean of its divisors is an integer number (3386880).

Almost surely, 240125471 is an apocalyptic number.

40125471 is a deficient number, since it is larger than the sum of its proper divisors (14064609).

40125471 is a wasteful number, since it uses less digits than its factorization.

40125471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 40125471 is about 6334.4669073254. The cubic root of 40125471 is about 342.3524034152.

Adding to 40125471 its reverse (17452104), we get a palindrome (57577575).

The spelling of 40125471 in words is "forty million, one hundred twenty-five thousand, four hundred seventy-one".

Divisors: 1 3 191 239 293 573 717 879 45649 55963 70027 136947 167889 210081 13375157 40125471