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2568247020 = 223354756013
BaseRepresentation
bin1001100100010100…
…0101011011101100
320121222121110121000
42121011011123230
520224432401040
61102502240300
7120433511433
oct23105053354
96558543530
102568247020
1110a8787aa9
125b8126090
1331c1060c1
141a513811a
1510070c130
hex991456ec

2568247020 has 48 divisors (see below), whose sum is σ = 7990103520. Its totient is φ = 684865728.

The previous prime is 2568247013. The next prime is 2568247021. The reversal of 2568247020 is 207428652.

2568247020 is a `hidden beast` number, since 2 + 568 + 2 + 4 + 70 + 20 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2568247021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2377467 + ... + 2378546.

It is an arithmetic number, because the mean of its divisors is an integer number (166460490).

Almost surely, 22568247020 is an apocalyptic number.

2568247020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2568247020 is an abundant number, since it is smaller than the sum of its proper divisors (5421856500).

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

2568247020 is a wasteful number, since it uses less digits than its factorization.

2568247020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756031 (or 4756023 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 2568247020 is about 50677.8750541102. The cubic root of 2568247020 is about 1369.4481624970.

The spelling of 2568247020 in words is "two billion, five hundred sixty-eight million, two hundred forty-seven thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 4756013 9512026 14268039 19024052 23780065 28536078 42804117 47560130 57072156 71340195 85608234 95120260 128412351 142680390 171216468 214020585 256824702 285360780 428041170 513649404 642061755 856082340 1284123510 2568247020