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2025321040 = 24525316513
BaseRepresentation
bin111100010110111…
…1111001001010000
312020010222222011101
41320231333021100
513121440233130
6532545354144
7101121642031
oct17055771120
95203888141
102025321040
1194a271746
12486338954
132637a1722
14152daaa88
15bcc151ca
hex78b7f250

2025321040 has 20 divisors (see below), whose sum is σ = 4708871604. Its totient is φ = 810128384.

The previous prime is 2025321031. The next prime is 2025321041. The reversal of 2025321040 is 401235202.

It can be written as a sum of positive squares in 2 ways, for example, as 219750976 + 1805570064 = 14824^2 + 42492^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 2025320999 and 2025321017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025321041) 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, 12658177 + ... + 12658336.

Almost surely, 22025321040 is an apocalyptic number.

2025321040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2025321040 is an abundant number, since it is smaller than the sum of its proper divisors (2683550564).

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

2025321040 is a wasteful number, since it uses less digits than its factorization.

2025321040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25316526 (or 25316520 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2025321040 is about 45003.5669697414. The cubic root of 2025321040 is about 1265.2158525982.

Adding to 2025321040 its reverse (401235202), we get a palindrome (2426556242).

The spelling of 2025321040 in words is "two billion, twenty-five million, three hundred twenty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 25316513 50633026 101266052 126582565 202532104 253165130 405064208 506330260 1012660520 2025321040