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28275830250 = 235337701107
BaseRepresentation
bin11010010101010111…
…101110110111101010
32200222120222000010020
4122111113232313222
5430402103032000
620553441101310
72020462406613
oct322527566752
980876860106
1028275830250
1110a9aa72858
125591627836
132888105505
141523470c0a
15b0759dba0
hex6955eedea

28275830250 has 32 divisors (see below), whose sum is σ = 70576474176. Its totient is φ = 7540221200.

The previous prime is 28275830237. The next prime is 28275830257. The reversal of 28275830250 is 5203857282.

It is not an unprimeable number, because it can be changed into a prime (28275830257) 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, 18849804 + ... + 18851303.

It is an arithmetic number, because the mean of its divisors is an integer number (2205514818).

Almost surely, 228275830250 is an apocalyptic number.

28275830250 is an abundant number, since it is smaller than the sum of its proper divisors (42300643926).

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

28275830250 is a wasteful number, since it uses less digits than its factorization.

28275830250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37701127 (or 37701117 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 28275830250 in words is "twenty-eight billion, two hundred seventy-five million, eight hundred thirty thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 250 375 750 37701107 75402214 113103321 188505535 226206642 377011070 565516605 942527675 1131033210 1885055350 2827583025 4712638375 5655166050 9425276750 14137915125 28275830250