Base | Representation |
---|---|
bin | 1110010110111… |
… | …01001000100110 |
3 | 22101122011022210 |
4 | 13023131020212 |
5 | 221313142210 |
6 | 15541304250 |
7 | 2661516012 |
oct | 713351046 |
9 | 271564283 |
10 | 120443430 |
11 | 61a94a28 |
12 | 34405086 |
13 | 1bc50a03 |
14 | 11dd3542 |
15 | a891e20 |
hex | 72dd226 |
120443430 has 64 divisors (see below), whose sum is σ = 300072960. Its totient is φ = 30917376.
The previous prime is 120443429. The next prime is 120443441. The reversal of 120443430 is 34344021.
It is a junction number, because it is equal to n+sod(n) for n = 120443397 and 120443406.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93531 + ... + 94809.
It is an arithmetic number, because the mean of its divisors is an integer number (4688640).
Almost surely, 2120443430 is an apocalyptic number.
120443430 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 120443430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150036480).
120443430 is an abundant number, since it is smaller than the sum of its proper divisors (179629530).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120443430 is a wasteful number, since it uses less digits than its factorization.
120443430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1405.
The product of its (nonzero) digits is 1152, while the sum is 21.
The square root of 120443430 is about 10974.6722046720. The cubic root of 120443430 is about 493.8492193918.
Adding to 120443430 its reverse (34344021), we get a palindrome (154787451).
The spelling of 120443430 in words is "one hundred twenty million, four hundred forty-three thousand, four hundred thirty".
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