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28675372154 = 21113100263539
BaseRepresentation
bin11010101101001011…
…110111010001111010
32202000102202211120112
4122231023313101322
5432211343402104
621101232424322
72033413433042
oct325513672172
982012684515
1028675372154
1111185555580
1256833a80a2
13291cb16440
141560556722
15b2c6c186e
hex6ad2f747a

28675372154 has 16 divisors (see below), whose sum is σ = 50532824160. Its totient is φ = 12031624560.

The previous prime is 28675372139. The next prime is 28675372157. The reversal of 28675372154 is 45127357682.

It is not an unprimeable number, because it can be changed into a prime (28675372157) 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, 50131484 + ... + 50132055.

It is an arithmetic number, because the mean of its divisors is an integer number (3158301510).

Almost surely, 228675372154 is an apocalyptic number.

28675372154 is a deficient number, since it is larger than the sum of its proper divisors (21857452006).

28675372154 is a wasteful number, since it uses less digits than its factorization.

28675372154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100263565.

The product of its digits is 2822400, while the sum is 50.

The spelling of 28675372154 in words is "twenty-eight billion, six hundred seventy-five million, three hundred seventy-two thousand, one hundred fifty-four".

Divisors: 1 2 11 13 22 26 143 286 100263539 200527078 1102898929 1303426007 2205797858 2606852014 14337686077 28675372154