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5147028 = 2232142973
BaseRepresentation
bin10011101000100110010100
3100200111101200
4103220212110
52304201103
6302152500
761514625
oct23504624
910614350
105147028
1129a6047
121882730
1310b29a3
1497da4c
156ba0a3
hex4e8994

5147028 has 18 divisors (see below), whose sum is σ = 13010634. Its totient is φ = 1715664.

The previous prime is 5146957. The next prime is 5147041. The reversal of 5147028 is 8207415.

It can be written as a sum of positive squares in only one way, i.e., 5008644 + 138384 = 2238^2 + 372^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5146992 and 5147010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71451 + ... + 71522.

It is an arithmetic number, because the mean of its divisors is an integer number (722813).

Almost surely, 25147028 is an apocalyptic number.

It is an amenable number.

5147028 is an abundant number, since it is smaller than the sum of its proper divisors (7863606).

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

5147028 is a wasteful number, since it uses less digits than its factorization.

5147028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142983 (or 142978 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 5147028 is about 2268.7062392474. The cubic root of 5147028 is about 172.6575246638.

The spelling of 5147028 in words is "five million, one hundred forty-seven thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 142973 285946 428919 571892 857838 1286757 1715676 2573514 5147028