Base | Representation |
---|---|
bin | 11001000111000… |
… | …101011101000110 |
3 | 1002100201122011000 |
4 | 121013011131012 |
5 | 1330322202000 |
6 | 105445354130 |
7 | 13303613112 |
oct | 3107053506 |
9 | 1070648130 |
10 | 421287750 |
11 | 1a68957a4 |
12 | b9108946 |
13 | 69385bc0 |
14 | 3dd46742 |
15 | 26ebb000 |
hex | 191c5746 |
421287750 has 128 divisors (see below), whose sum is σ = 1258508160. Its totient is φ = 103680000.
The previous prime is 421287749. The next prime is 421287767. The reversal of 421287750 is 57782124.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 85350 + ... + 90150.
It is an arithmetic number, because the mean of its divisors is an integer number (9832095).
Almost surely, 2421287750 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 421287750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (629254080).
421287750 is an abundant number, since it is smaller than the sum of its proper divisors (837220410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
421287750 is a wasteful number, since it uses less digits than its factorization.
421287750 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4840 (or 4824 counting only the distinct ones).
The product of its (nonzero) digits is 31360, while the sum is 36.
The square root of 421287750 is about 20525.2953693729. The cubic root of 421287750 is about 749.6518384030.
The spelling of 421287750 in words is "four hundred twenty-one million, two hundred eighty-seven thousand, seven hundred fifty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.000 sec. • engine limits •