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40125190 = 257619397
BaseRepresentation
bin1001100100010…
…0001100000110
32210111120102011
42121010030012
540233001230
63552004434
7665026030
oct231041406
983446364
1040125190
1120716716
121153071a
13840b821
145486c50
1537c8e2a
hex2644306

40125190 has 32 divisors (see below), whose sum is σ = 83905344. Its totient is φ = 13530240.

The previous prime is 40125167. The next prime is 40125193. The reversal of 40125190 is 9152104.

It is a super-2 number, since 2×401251902 = 3220061745072200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40125193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429 + ... + 8968.

It is an arithmetic number, because the mean of its divisors is an integer number (2622042).

Almost surely, 240125190 is an apocalyptic number.

40125190 is an abundant number, since it is smaller than the sum of its proper divisors (43780154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40125190 is a wasteful number, since it uses less digits than its factorization.

40125190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9472.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 40125190 is about 6334.4447270459. Note that the first 3 decimals coincide. The cubic root of 40125190 is about 342.3516042450.

Adding to 40125190 its reverse (9152104), we get a palindrome (49277294).

The spelling of 40125190 in words is "forty million, one hundred twenty-five thousand, one hundred ninety".

Divisors: 1 2 5 7 10 14 35 61 70 122 305 427 610 854 2135 4270 9397 18794 46985 65779 93970 131558 328895 573217 657790 1146434 2866085 4012519 5732170 8025038 20062595 40125190