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5281512 = 233220063
BaseRepresentation
bin10100001001011011101000
3100221022212120
4110021123220
52323002022
6305111240
762614665
oct24113350
910838776
105281512
112a88095
121928520
13112bc72
149b6a6c
156e4d5c
hex5096e8

5281512 has 16 divisors (see below), whose sum is σ = 13203840. Its totient is φ = 1760496.

The previous prime is 5281511. The next prime is 5281547. The reversal of 5281512 is 2151825.

It is a super-3 number, since 3×52815123 (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 220063 = 5281512 / (5 + 2 + 8 + 1 + 5 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (5281511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110008 + ... + 110055.

It is an arithmetic number, because the mean of its divisors is an integer number (825240).

Almost surely, 25281512 is an apocalyptic number.

It is an amenable number.

5281512 is an abundant number, since it is smaller than the sum of its proper divisors (7922328).

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

5281512 is a wasteful number, since it uses less digits than its factorization.

5281512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220072 (or 220068 counting only the distinct ones).

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

The square root of 5281512 is about 2298.1540418344. The cubic root of 5281512 is about 174.1483739045.

The spelling of 5281512 in words is "five million, two hundred eighty-one thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 220063 440126 660189 880252 1320378 1760504 2640756 5281512