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2550030028 = 2271316342979
BaseRepresentation
bin1001011111111110…
…0101111011001100
320120201022221120121
42113333211323030
520210301430103
61101011554324
7120122616610
oct22777457314
96521287517
102550030028
111099475337
125b1bbb9a4
133183c8410
141a2955340
15edd0e6bd
hex97fe5ecc

2550030028 has 48 divisors (see below), whose sum is σ = 5526196480. Its totient is φ = 1002590784.

The previous prime is 2550030017. The next prime is 2550030029. The reversal of 2550030028 is 8200300552.

It is a junction number, because it is equal to n+sod(n) for n = 2550029984 and 2550030011.

It is not an unprimeable number, because it can be changed into a prime (2550030029) 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, 37843 + ... + 80821.

Almost surely, 22550030028 is an apocalyptic number.

2550030028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2550030028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2763098240).

2550030028 is an abundant number, since it is smaller than the sum of its proper divisors (2976166452).

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

2550030028 is a wasteful number, since it uses less digits than its factorization.

2550030028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43166 (or 43164 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2550030028 is about 50497.8220124393. The cubic root of 2550030028 is about 1366.2025706628.

The spelling of 2550030028 in words is "two billion, five hundred fifty million, thirty thousand, twenty-eight".

Divisors: 1 2 4 7 13 14 26 28 52 91 163 182 326 364 652 1141 2119 2282 4238 4564 8476 14833 29666 42979 59332 85958 171916 300853 558727 601706 1117454 1203412 2234908 3911089 7005577 7822178 14011154 15644356 28022308 49039039 91072501 98078078 182145002 196156156 364290004 637507507 1275015014 2550030028