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2750025530 = 257227720261
BaseRepresentation
bin1010001111101010…
…0000111100111010
321002122122202211102
42203322200330322
521113001304110
61132514331402
7125101555100
oct24372407472
97078582742
102750025530
11119135497a
12648b89b62
1334a980655
141c1335c70
151116675a5
hexa3ea0f3a

2750025530 has 48 divisors (see below), whose sum is σ = 5779289736. Its totient is φ = 939415680.

The previous prime is 2750025497. The next prime is 2750025539. The reversal of 2750025530 is 355200572.

It can be written as a sum of positive squares in 4 ways, for example, as 852464809 + 1897560721 = 29197^2 + 43561^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2750025493 and 2750025502.

It is not an unprimeable number, because it can be changed into a prime (2750025539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125600 + ... + 145860.

Almost surely, 22750025530 is an apocalyptic number.

2750025530 is an abundant number, since it is smaller than the sum of its proper divisors (3029264206).

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

2750025530 is a wasteful number, since it uses less digits than its factorization.

2750025530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20559 (or 20552 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 2750025530 is about 52440.6858269417. The cubic root of 2750025530 is about 1401.0240008333.

The spelling of 2750025530 in words is "two billion, seven hundred fifty million, twenty-five thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 277 490 554 1385 1939 2770 3878 9695 13573 19390 20261 27146 40522 67865 101305 135730 141827 202610 283654 709135 992789 1418270 1985578 4963945 5612297 9927890 11224594 28061485 39286079 56122970 78572158 196430395 275002553 392860790 550005106 1375012765 2750025530