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550005028 = 22137501257
BaseRepresentation
bin100000110010000…
…110100100100100
31102022221011001121
4200302012210210
52111300130103
6130324303324
716425652126
oct4062064444
91368834047
10550005028
11262510a11
12134241b44
1389c42881
1453091216
15334446bd
hex20c86924

550005028 has 6 divisors (see below), whose sum is σ = 962508806. Its totient is φ = 275002512.

The previous prime is 550005019. The next prime is 550005059. The reversal of 550005028 is 820500055.

It can be written as a sum of positive squares in only one way, i.e., 380172004 + 169833024 = 19498^2 + 13032^2 .

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 550004993 and 550005011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68750625 + ... + 68750632.

Almost surely, 2550005028 is an apocalyptic number.

It is an amenable number.

550005028 is a deficient number, since it is larger than the sum of its proper divisors (412503778).

550005028 is a wasteful number, since it uses less digits than its factorization.

550005028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137501261 (or 137501259 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 550005028 is about 23452.1859961923. The cubic root of 550005028 is about 819.3237672884.

The spelling of 550005028 in words is "five hundred fifty million, five thousand, twenty-eight".

Divisors: 1 2 4 137501257 275002514 550005028