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2750440028 = 22798230001
BaseRepresentation
bin1010001111110000…
…0110001001011100
321002200102211102012
42203330012021130
521113103040103
61132531250352
7125105232410
oct24374061134
97080384365
102750440028
111191608336
126491499b8
1334aa9720b
141c1402d40
151116ea2d8
hexa3f0625c

2750440028 has 12 divisors (see below), whose sum is σ = 5500880112. Its totient is φ = 1178760000.

The previous prime is 2750440009. The next prime is 2750440031. The reversal of 2750440028 is 8200440572.

2750440028 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2750439976 and 2750440003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49114973 + ... + 49115028.

It is an arithmetic number, because the mean of its divisors is an integer number (458406676).

Almost surely, 22750440028 is an apocalyptic number.

2750440028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2750440028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2750440028 is a wasteful number, since it uses less digits than its factorization.

2750440028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98230012 (or 98230010 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 2750440028 is about 52444.6377430524. The cubic root of 2750440028 is about 1401.0943871462.

The spelling of 2750440028 in words is "two billion, seven hundred fifty million, four hundred forty thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 98230001 196460002 392920004 687610007 1375220014 2750440028