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28495930103 = 51135573231
BaseRepresentation
bin11010100010011111…
…010110001011110111
32201112221010020100122
4122202133112023313
5431324424230403
621031342402155
72026104260264
oct324237261367
981487106318
1028495930103
11110a3234063
12563329035b
1328c18a9504
1415447a626b
15b1ba78838
hex6a27d62f7

28495930103 has 4 divisors (see below), whose sum is σ = 28501508448. Its totient is φ = 28490351760.

The previous prime is 28495930093. The next prime is 28495930121. The reversal of 28495930103 is 30103959482.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28495930103 - 230 = 27422188279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28495930123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2781503 + ... + 2791728.

It is an arithmetic number, because the mean of its divisors is an integer number (7125377112).

Almost surely, 228495930103 is an apocalyptic number.

28495930103 is a deficient number, since it is larger than the sum of its proper divisors (5578345).

28495930103 is an equidigital number, since it uses as much as digits as its factorization.

28495930103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5578344.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 28495930103 in words is "twenty-eight billion, four hundred ninety-five million, nine hundred thirty thousand, one hundred three".

Divisors: 1 5113 5573231 28495930103