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40915485 = 3251369941
BaseRepresentation
bin1001110000010…
…1001000011101
32211222201111100
42130011020131
540433243420
64020543313
71004530062
oct234051035
984881440
1040915485
1121106456
1211851b39
138627460
145610c69
1538d3190
hex270521d

40915485 has 24 divisors (see below), whose sum is σ = 76376664. Its totient is φ = 20142720.

The previous prime is 40915453. The next prime is 40915541. The reversal of 40915485 is 58451904.

It can be written as a sum of positive squares in 4 ways, for example, as 427716 + 40487769 = 654^2 + 6363^2 .

It is not a de Polignac number, because 40915485 - 25 = 40915453 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 34386 + ... + 35555.

It is an arithmetic number, because the mean of its divisors is an integer number (3182361).

Almost surely, 240915485 is an apocalyptic number.

40915485 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40915485 is a deficient number, since it is larger than the sum of its proper divisors (35461179).

40915485 is a wasteful number, since it uses less digits than its factorization.

40915485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69965 (or 69962 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 40915485 is about 6396.5213202177. The cubic root of 40915485 is about 344.5846292801.

The spelling of 40915485 in words is "forty million, nine hundred fifteen thousand, four hundred eighty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 69941 209823 349705 629469 909233 1049115 2727699 3147345 4546165 8183097 13638495 40915485