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2806201420 = 2251112755461
BaseRepresentation
bin1010011101000011…
…0011110001001100
321020120100210122221
42213100303301030
521221341421140
61142242345124
7126353214151
oct24720636114
97216323587
102806201420
111210033730
1266395b1a4
133594bbb19
141c899a228
1511656214a
hexa7433c4c

2806201420 has 24 divisors (see below), whose sum is σ = 6428752848. Its totient is φ = 1020436800.

The previous prime is 2806201399. The next prime is 2806201421. The reversal of 2806201420 is 241026082.

It is a happy number.

It is a super-2 number, since 2×28062014202 = 15749532819220032800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2806201421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6377511 + ... + 6377950.

It is an arithmetic number, because the mean of its divisors is an integer number (267864702).

Almost surely, 22806201420 is an apocalyptic number.

2806201420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2806201420 is an abundant number, since it is smaller than the sum of its proper divisors (3622551428).

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

2806201420 is a wasteful number, since it uses less digits than its factorization.

2806201420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12755481 (or 12755479 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 2806201420 is about 52973.5917226688. The cubic root of 2806201420 is about 1410.4995329460.

The spelling of 2806201420 in words is "two billion, eight hundred six million, two hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 12755461 25510922 51021844 63777305 127554610 140310071 255109220 280620142 561240284 701550355 1403100710 2806201420