Base | Representation |
---|---|
bin | 1111011111110… |
… | …10101000101110 |
3 | 100001121202110200 |
4 | 13233322220232 |
5 | 231240021304 |
6 | 20522214330 |
7 | 3135664662 |
oct | 757725056 |
9 | 301552420 |
10 | 130001454 |
11 | 67423020 |
12 | 376543a6 |
13 | 20c1934b |
14 | 133a08a2 |
15 | b62de39 |
hex | 7bfaa2e |
130001454 has 48 divisors (see below), whose sum is σ = 308206080. Its totient is φ = 39275280.
The previous prime is 130001449. The next prime is 130001467. The reversal of 130001454 is 454100031.
It is a happy number.
It is a super-2 number, since 2×1300014542 = 33800756084228232, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
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, 82179 + ... + 83745.
It is an arithmetic number, because the mean of its divisors is an integer number (6420960).
Almost surely, 2130001454 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 130001454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154103040).
130001454 is an abundant number, since it is smaller than the sum of its proper divisors (178204626).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130001454 is a wasteful number, since it uses less digits than its factorization.
130001454 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2005 (or 2002 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 130001454 is about 11401.8180129311. The cubic root of 130001454 is about 506.5815905361.
Adding to 130001454 its reverse (454100031), we get a palindrome (584101485).
The spelling of 130001454 in words is "one hundred thirty million, one thousand, four hundred fifty-four".
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