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2581230830 = 25258123083
BaseRepresentation
bin1001100111011010…
…0111010011101110
320122220001010000212
42121312213103232
520241243341310
61104044422422
7120652046213
oct23166472356
96586033025
102581230830
111105045a22
12600547a12
13321a00b29
141a6b57b0a
15101924205
hex99da74ee

2581230830 has 8 divisors (see below), whose sum is σ = 4646215512. Its totient is φ = 1032492328.

The previous prime is 2581230823. The next prime is 2581230833. The reversal of 2581230830 is 380321852.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2581230833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129061532 + ... + 129061551.

It is an arithmetic number, because the mean of its divisors is an integer number (580776939).

Almost surely, 22581230830 is an apocalyptic number.

2581230830 is a deficient number, since it is larger than the sum of its proper divisors (2064984682).

2581230830 is a wasteful number, since it uses less digits than its factorization.

2581230830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258123090.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 2581230830 is about 50805.8149230971. The cubic root of 2581230830 is about 1371.7520394254.

The spelling of 2581230830 in words is "two billion, five hundred eighty-one million, two hundred thirty thousand, eight hundred thirty".

Divisors: 1 2 5 10 258123083 516246166 1290615415 2581230830