Base | Representation |
---|---|
bin | 10111111110110000… |
… | …10100100101100010 |
3 | 1020020020122101110000 |
4 | 23333120110211202 |
5 | 202331333003300 |
6 | 5525305120430 |
7 | 634020306510 |
oct | 137730244542 |
9 | 36206571400 |
10 | 12874500450 |
11 | 5507357819 |
12 | 25b3789116 |
13 | 12a23a0806 |
14 | 8a1c1b4b0 |
15 | 505411c00 |
hex | 2ff614962 |
12874500450 has 240 divisors, whose sum is σ = 41288607360. Its totient is φ = 2913511680.
The previous prime is 12874500449. The next prime is 12874500461. The reversal of 12874500450 is 5400547821.
It is an unprimeable number.
It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2917846 + ... + 2922254.
It is an arithmetic number, because the mean of its divisors is an integer number (172035864).
Almost surely, 212874500450 is an apocalyptic number.
12874500450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 12874500450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20644303680).
12874500450 is an abundant number, since it is smaller than the sum of its proper divisors (28414106910).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12874500450 is a wasteful number, since it uses less digits than its factorization.
12874500450 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4543 (or 4529 counting only the distinct ones).
The product of its (nonzero) digits is 44800, while the sum is 36.
The spelling of 12874500450 in words is "twelve billion, eight hundred seventy-four million, five hundred thousand, four hundred fifty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •