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28205596232 = 2311503643991
BaseRepresentation
bin11010010001001011…
…110011111001001000
32200210200210202011022
4122101023303321020
5430231113034412
620542451452012
72015650416662
oct322113637110
980720722138
1028205596232
1110a64361a10
125571bb7008
1328766b4318
141517dcb532
15b01328a72
hex6912f3e48

28205596232 has 64 divisors (see below), whose sum is σ = 57956290560. Its totient is φ = 12762446400.

The previous prime is 28205596169. The next prime is 28205596277. The reversal of 28205596232 is 23269550282.

It is a super-2 number, since 2×282055962322 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28461257 + ... + 28462247.

It is an arithmetic number, because the mean of its divisors is an integer number (905567040).

Almost surely, 228205596232 is an apocalyptic number.

28205596232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28205596232 is an abundant number, since it is smaller than the sum of its proper divisors (29750694328).

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

28205596232 is a wasteful number, since it uses less digits than its factorization.

28205596232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 28205596232 in words is "twenty-eight billion, two hundred five million, five hundred ninety-six thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 22 44 88 503 643 991 1006 1286 1982 2012 2572 3964 4024 5144 5533 7073 7928 10901 11066 14146 21802 22132 28292 43604 44264 56584 87208 323429 498473 637213 646858 996946 1274426 1293716 1993892 2548852 2587432 3557719 3987784 5097704 5483203 7009343 7115438 10966406 14018686 14230876 21932812 28037372 28461752 43865624 56074744 320518139 641036278 1282072556 2564145112 3525699529 7051399058 14102798116 28205596232