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5081145 = 351392437
BaseRepresentation
bin10011011000100000111001
3100120011000120
4103120200321
52300044040
6300523453
761121556
oct23304071
910504016
105081145
1129605a3
121850589
13108b9c4
14963a2d
156a57d0
hex4d8839

5081145 has 16 divisors (see below), whose sum is σ = 8191680. Its totient is φ = 2689344.

The previous prime is 5081101. The next prime is 5081149. The reversal of 5081145 is 5411805.

It is not a de Polignac number, because 5081145 - 26 = 5081081 is a prime.

It is a super-2 number, since 2×50811452 = 51636069022050, which contains 22 as substring.

It is a Curzon number.

5081145 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5081149) 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, 867 + ... + 3303.

It is an arithmetic number, because the mean of its divisors is an integer number (511980).

Almost surely, 25081145 is an apocalyptic number.

It is an amenable number.

5081145 is a deficient number, since it is larger than the sum of its proper divisors (3110535).

5081145 is a wasteful number, since it uses less digits than its factorization.

5081145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 5081145 is about 2254.1395254065. The cubic root of 5081145 is about 171.9176751333.

It can be divided in two parts, 508 and 1145, that added together give a triangular number (1653 = T57).

The spelling of 5081145 in words is "five million, eighty-one thousand, one hundred forty-five".

Divisors: 1 3 5 15 139 417 695 2085 2437 7311 12185 36555 338743 1016229 1693715 5081145