Base | Representation |
---|---|
bin | 100100101010011… |
… | …1110110001110000 |
3 | 10011201220111121100 |
4 | 1021110332301300 |
5 | 10004420034114 |
6 | 322024124400 |
7 | 42325561110 |
oct | 11124766160 |
9 | 3151814540 |
10 | 1230236784 |
11 | 581489117 |
12 | 2a4006700 |
13 | 167b5017a |
14 | b9561040 |
15 | 7300e909 |
hex | 4953ec70 |
1230236784 has 120 divisors (see below), whose sum is σ = 3971258720. Its totient is φ = 348240384.
The previous prime is 1230236699. The next prime is 1230236801. The reversal of 1230236784 is 4876320321.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104274 + ... + 115470.
Almost surely, 21230236784 is an apocalyptic number.
1230236784 is a gapful number since it is divisible by the number (14) 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 1230236784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1985629360).
1230236784 is an abundant number, since it is smaller than the sum of its proper divisors (2741021936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230236784 is a wasteful number, since it uses less digits than its factorization.
1230236784 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11327 (or 11318 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 36.
The square root of 1230236784 is about 35074.7314173608. The cubic root of 1230236784 is about 1071.5100187075.
The spelling of 1230236784 in words is "one billion, two hundred thirty million, two hundred thirty-six thousand, seven hundred eighty-four".
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