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28914260480 = 29572331273
BaseRepresentation
bin11010111011011011…
…001001101000000000
32202122002021121202022
4122323123021220000
5433204022313410
621141044541012
72042344105340
oct327333115000
982562247668
1028914260480
1111298389946
12572b3b1768
13295a468291
14158417cd20
15b4365d455
hex6bb6c9a00

28914260480 has 480 divisors, whose sum is σ = 86598243072. Its totient is φ = 9050849280.

The previous prime is 28914260471. The next prime is 28914260483. The reversal of 28914260480 is 8406241982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28914260483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 396085724 + ... + 396085796.

Almost surely, 228914260480 is an apocalyptic number.

28914260480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28914260480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43299121536).

28914260480 is an abundant number, since it is smaller than the sum of its proper divisors (57683982592).

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

28914260480 is an equidigital number, since it uses as much as digits as its factorization.

28914260480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 28914260480 in words is "twenty-eight billion, nine hundred fourteen million, two hundred sixty thousand, four hundred eighty".