Base | Representation |
---|---|
bin | 1001111001011… |
… | …01011010011000 |
3 | 12210020000211220 |
4 | 10330231122120 |
5 | 132223223022 |
6 | 12123252040 |
7 | 2025455025 |
oct | 474553230 |
9 | 183200756 |
10 | 83023512 |
11 | 42956880 |
12 | 2397a020 |
13 | 1427b650 |
14 | b05254c |
15 | 744e85c |
hex | 4f2d698 |
83023512 has 128 divisors (see below), whose sum is σ = 258370560. Its totient is φ = 21841920.
The previous prime is 83023511. The next prime is 83023513. The reversal of 83023512 is 21532038.
It is an interprime number because it is at equal distance from previous prime (83023511) and next prime (83023513).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (83023511) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57633 + ... + 59055.
It is an arithmetic number, because the mean of its divisors is an integer number (2018520).
Almost surely, 283023512 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 83023512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129185280).
83023512 is an abundant number, since it is smaller than the sum of its proper divisors (175347048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
83023512 is a wasteful number, since it uses less digits than its factorization.
83023512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1473 (or 1469 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 24.
The square root of 83023512 is about 9111.7238764133. The cubic root of 83023512 is about 436.2482524157.
It can be divided in two parts, 830 and 23512, that added together give a palindrome (24342).
The spelling of 83023512 in words is "eighty-three million, twenty-three thousand, five hundred twelve".
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