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40125271 = 238321019
BaseRepresentation
bin1001100100010…
…0001101010111
32210111120112011
42121010031113
540233002041
63552005051
7665026204
oct231041527
983446464
1040125271
112071678a
1211530787
13840b884
145486cab
1537c8e81
hex2644357

40125271 has 8 divisors (see below), whose sum is σ = 42376320. Its totient is φ = 37916472.

The previous prime is 40125259. The next prime is 40125277. The reversal of 40125271 is 17252104.

It is a happy number.

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 40125271 - 27 = 40125143 is a prime.

It is a super-2 number, since 2×401252712 = 3220074745646882, 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 (40125277) 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, 8601 + ... + 12418.

It is an arithmetic number, because the mean of its divisors is an integer number (5297040).

Almost surely, 240125271 is an apocalyptic number.

40125271 is a deficient number, since it is larger than the sum of its proper divisors (2251049).

40125271 is a wasteful number, since it uses less digits than its factorization.

40125271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21125.

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

The square root of 40125271 is about 6334.4511206576. The cubic root of 40125271 is about 342.3518346112.

Adding to 40125271 its reverse (17252104), we get a palindrome (57377375).

The spelling of 40125271 in words is "forty million, one hundred twenty-five thousand, two hundred seventy-one".

Divisors: 1 23 83 1909 21019 483437 1744577 40125271