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2025810001 = 19216149339
BaseRepresentation
bin111100010111111…
…0110100001010001
312020011220210220001
41320233312201101
513122101410001
6533004050001
7101126046415
oct17057664121
95204823801
102025810001
1194a576046
12486533901
13263913157
14153096d45
15bccb0001
hex78bf6851

2025810001 has 8 divisors (see below), whose sum is σ = 2133461600. Its totient is φ = 1918261440.

The previous prime is 2025809987. The next prime is 2025810019. The reversal of 2025810001 is 1000185202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2025810001 - 227 = 1891592273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2025810071) 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 7 ways as a sum of consecutive naturals, for example, 16390 + ... + 65728.

It is an arithmetic number, because the mean of its divisors is an integer number (266682700).

Almost surely, 22025810001 is an apocalyptic number.

It is an amenable number.

2025810001 is a deficient number, since it is larger than the sum of its proper divisors (107651599).

2025810001 is a wasteful number, since it uses less digits than its factorization.

2025810001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51519.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2025810001 is about 45008.9991112888. Note that the first 3 decimals coincide. The cubic root of 2025810001 is about 1265.3176622073.

Adding to 2025810001 its reverse (1000185202), we get a palindrome (3025995203).

The spelling of 2025810001 in words is "two billion, twenty-five million, eight hundred ten thousand, one".

Divisors: 1 19 2161 41059 49339 937441 106621579 2025810001