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2572643508 = 223214386959
BaseRepresentation
bin1001100101010111…
…0110110010110100
320122021212211102220
42121111312302310
520232044043013
61103140402340
7120516052251
oct23125666264
96567784386
102572643508
111100210166
125b96a63b0
1331ccb5286
141a5960428
15100cc9b23
hex99576cb4

2572643508 has 12 divisors (see below), whose sum is σ = 6002834880. Its totient is φ = 857547832.

The previous prime is 2572643503. The next prime is 2572643519. The reversal of 2572643508 is 8053462752.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2572643508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2572643503) 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 3 ways as a sum of consecutive naturals, for example, 107193468 + ... + 107193491.

It is an arithmetic number, because the mean of its divisors is an integer number (500236240).

Almost surely, 22572643508 is an apocalyptic number.

It is an amenable number.

2572643508 is an abundant number, since it is smaller than the sum of its proper divisors (3430191372).

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

2572643508 is a wasteful number, since it uses less digits than its factorization.

2572643508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214386966 (or 214386964 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The square root of 2572643508 is about 50721.2333051948. The cubic root of 2572643508 is about 1370.2291530657.

The spelling of 2572643508 in words is "two billion, five hundred seventy-two million, six hundred forty-three thousand, five hundred eight".

Divisors: 1 2 3 4 6 12 214386959 428773918 643160877 857547836 1286321754 2572643508