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2720000305 = 51149454551
BaseRepresentation
bin1010001000011111…
…1110100100110001
321000120011022222001
42202013332210301
521032310002210
61125523014001
7124255423021
oct24207764461
97016138861
102720000305
111176407540
1263ab0a301
1334469a049
141bb35ba81
1510dbd603a
hexa21fe931

2720000305 has 8 divisors (see below), whose sum is σ = 3560727744. Its totient is φ = 1978182000.

The previous prime is 2720000267. The next prime is 2720000317. The reversal of 2720000305 is 5030000272.

It is a happy number.

2720000305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2720000305 - 213 = 2719992113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24727221 + ... + 24727330.

It is an arithmetic number, because the mean of its divisors is an integer number (445090968).

Almost surely, 22720000305 is an apocalyptic number.

It is an amenable number.

2720000305 is a deficient number, since it is larger than the sum of its proper divisors (840727439).

2720000305 is a wasteful number, since it uses less digits than its factorization.

2720000305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49454567.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 2720000305 is about 52153.6221656751. The cubic root of 2720000305 is about 1395.9064615572.

Adding to 2720000305 its reverse (5030000272), we get a palindrome (7750000577).

The spelling of 2720000305 in words is "two billion, seven hundred twenty million, three hundred five", and thus it is an aban number.

Divisors: 1 5 11 55 49454551 247272755 544000061 2720000305