Base | Representation |
---|---|
bin | 1011111011111000001000… |
… | …1110111001000101111110 |
3 | 1201110120120001002011000012 |
4 | 2332332002032321011332 |
5 | 3210003014331444410 |
6 | 43524433154303222 |
7 | 2523061566515540 |
oct | 276760216710576 |
9 | 51416501064005 |
10 | 13123310031230 |
11 | 41aa623430313 |
12 | 157b475b87b12 |
13 | 7426a4857939 |
14 | 335258bd9690 |
15 | 17b57a022605 |
hex | bef823b917e |
13123310031230 has 128 divisors (see below), whose sum is σ = 28266805094400. Its totient is φ = 4289058385920.
The previous prime is 13123310031199. The next prime is 13123310031257. The reversal of 13123310031230 is 3213001332131.
It is a Harshad number since it is a multiple of its sum of digits (23).
It is a junction number, because it is equal to n+sod(n) for n = 13123310031196 and 13123310031205.
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, 2477495942 + ... + 2477501238.
It is an arithmetic number, because the mean of its divisors is an integer number (220834414800).
Almost surely, 213123310031230 is an apocalyptic number.
13123310031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13123310031230 is an abundant number, since it is smaller than the sum of its proper divisors (15143495063170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13123310031230 is a wasteful number, since it uses less digits than its factorization.
13123310031230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10314.
The product of its (nonzero) digits is 972, while the sum is 23.
Adding to 13123310031230 its reverse (3213001332131), we get a palindrome (16336311363361).
The spelling of 13123310031230 in words is "thirteen trillion, one hundred twenty-three billion, three hundred ten million, thirty-one thousand, two hundred thirty".
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