Base | Representation |
---|---|
bin | 111010010101110011… |
… | …0011110011001011000 |
3 | 102222101100212202210020 |
4 | 1310223212132121120 |
5 | 4023041100322343 |
6 | 133315544150440 |
7 | 12023456446023 |
oct | 1645346363130 |
9 | 388340782706 |
10 | 125285557848 |
11 | 49151481a50 |
12 | 20345a68420 |
13 | ba782582a9 |
14 | 60c72dc1ba |
15 | 33d4016b83 |
hex | 1d2b99e658 |
125285557848 has 256 divisors, whose sum is σ = 358497239040. Its totient is φ = 36143116800.
The previous prime is 125285557847. The next prime is 125285557861. The reversal of 125285557848 is 848755582521.
It is a Cunningham number, because it is equal to 3539572-1.
It is a super-2 number, since 2×1252855578482 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 125285557791 and 125285557800.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (125285557847) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 151493611 + ... + 151494437.
It is an arithmetic number, because the mean of its divisors is an integer number (1400379840).
Almost surely, 2125285557848 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 125285557848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179248619520).
125285557848 is an abundant number, since it is smaller than the sum of its proper divisors (233211681192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
125285557848 is a wasteful number, since it uses less digits than its factorization.
125285557848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1158 (or 1154 counting only the distinct ones).
The product of its digits is 35840000, while the sum is 60.
The spelling of 125285557848 in words is "one hundred twenty-five billion, two hundred eighty-five million, five hundred fifty-seven thousand, eight hundred forty-eight".
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