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5351481 = 331789131
BaseRepresentation
bin10100011010100000111001
3101001212212000
4110122200321
52332221411
6310411213
763325662
oct24324071
911055760
105351481
113025713
121960b09
131154a75
149d4369
1570a956
hex51a839

5351481 has 32 divisors (see below), whose sum is σ = 8553600. Its totient is φ = 3294720.

The previous prime is 5351461. The next prime is 5351503. The reversal of 5351481 is 1841535.

It is not a de Polignac number, because 5351481 - 217 = 5220409 is a prime.

It is a super-2 number, since 2×53514812 = 57276697786722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (2400) is a multiple of the sum of its prime divisors (240).

It is a Curzon number.

5351481 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5351441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40786 + ... + 40916.

It is an arithmetic number, because the mean of its divisors is an integer number (267300).

Almost surely, 25351481 is an apocalyptic number.

5351481 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5351481 is a deficient number, since it is larger than the sum of its proper divisors (3202119).

5351481 is a wasteful number, since it uses less digits than its factorization.

5351481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 240 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 5351481 is about 2313.3268251590. The cubic root of 5351481 is about 174.9140366917.

It can be divided in two parts, 5351 and 481, that added together give a cube (5832 = 183).

The spelling of 5351481 in words is "five million, three hundred fifty-one thousand, four hundred eighty-one".

Divisors: 1 3 9 17 27 51 89 131 153 267 393 459 801 1179 1513 2227 2403 3537 4539 6681 11659 13617 20043 34977 40851 60129 104931 198203 314793 594609 1783827 5351481