Search a number
-
+
2800502530 = 257192105641
BaseRepresentation
bin1010011011101100…
…0100011100000010
321020011122021020221
42212323010130002
521213412040110
61141520253254
7126253610260
oct24673043402
97204567227
102800502530
1112078a1001
12661a7122a
13358274bb7
141c7d15430
15115cd87da
hexa6ec4702

2800502530 has 32 divisors (see below), whose sum is σ = 6064248960. Its totient is φ = 909636480.

The previous prime is 2800502519. The next prime is 2800502533. The reversal of 2800502530 is 352050082.

It is a junction number, because it is equal to n+sod(n) for n = 2800502495 and 2800502504.

It is not an unprimeable number, because it can be changed into a prime (2800502533) 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, 1051491 + ... + 1054150.

It is an arithmetic number, because the mean of its divisors is an integer number (189507780).

Almost surely, 22800502530 is an apocalyptic number.

2800502530 is an abundant number, since it is smaller than the sum of its proper divisors (3263746430).

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

2800502530 is a wasteful number, since it uses less digits than its factorization.

2800502530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105674.

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

The square root of 2800502530 is about 52919.7744704189. The cubic root of 2800502530 is about 1409.5440622983.

The spelling of 2800502530 in words is "two billion, eight hundred million, five hundred two thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 190 266 665 1330 2105641 4211282 10528205 14739487 21056410 29478974 40007179 73697435 80014358 147394870 200035895 280050253 400071790 560100506 1400251265 2800502530