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41508981 = 328095701
BaseRepresentation
bin1001111001011…
…0000001110101
32220002212121200
42132112001311
541111241411
64041403113
71012551303
oct236260165
986085550
1041508981
1121481348
1211a99499
1387a4637
145727273
15399de56
hex2796075

41508981 has 12 divisors (see below), whose sum is σ = 60042060. Its totient is φ = 27633600.

The previous prime is 41508967. The next prime is 41508991. The reversal of 41508981 is 18980514.

41508981 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 2 ways, for example, as 35892081 + 5616900 = 5991^2 + 2370^2 .

It is not a de Polignac number, because 41508981 - 25 = 41508949 is a prime.

It is a super-2 number, since 2×415089812 = 3445991007316722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41508991) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4431 + ... + 10131.

It is an arithmetic number, because the mean of its divisors is an integer number (5003505).

Almost surely, 241508981 is an apocalyptic number.

It is an amenable number.

41508981 is a deficient number, since it is larger than the sum of its proper divisors (18533079).

41508981 is a wasteful number, since it uses less digits than its factorization.

41508981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6516 (or 6513 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 41508981 is about 6442.7463864411. The cubic root of 41508981 is about 346.2427517847.

It can be divided in two parts, 4150 and 8981, that added together give a palindrome (13131).

The spelling of 41508981 in words is "forty-one million, five hundred eight thousand, nine hundred eighty-one".

Divisors: 1 3 9 809 2427 5701 7281 17103 51309 4612109 13836327 41508981