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2420205025 = 52777317891
BaseRepresentation
bin1001000001000001…
…0110010111100001
320020200001011011011
42100100112113201
514424033030100
61040053220521
7113655255220
oct22020262741
96220034134
102420205025
111032162947
12576631741
132c75414a4
1418d5dccb7
15e2717bba
hex904165e1

2420205025 has 24 divisors (see below), whose sum is σ = 3434405184. Its totient is φ = 1657329600.

The previous prime is 2420205019. The next prime is 2420205037. The reversal of 2420205025 is 5205020242.

It is a happy number.

It is not a de Polignac number, because 2420205025 - 25 = 2420204993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2420204987 and 2420205005.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126330 + ... + 144220.

It is an arithmetic number, because the mean of its divisors is an integer number (143100216).

Almost surely, 22420205025 is an apocalyptic number.

2420205025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2420205025 is a deficient number, since it is larger than the sum of its proper divisors (1014200159).

2420205025 is a wasteful number, since it uses less digits than its factorization.

2420205025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18681 (or 18676 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2420205025 is about 49195.5793237563. The cubic root of 2420205025 is about 1342.6126026367.

Adding to 2420205025 its reverse (5205020242), we get a palindrome (7625225267).

The spelling of 2420205025 in words is "two billion, four hundred twenty million, two hundred five thousand, twenty-five".

Divisors: 1 5 7 25 35 175 773 3865 5411 17891 19325 27055 89455 125237 135275 447275 626185 3130925 13829743 69148715 96808201 345743575 484041005 2420205025