Base | Representation |
---|---|
bin | 1111000010111010000… |
… | …1111010010010111111 |
3 | 220201011211020101110222 |
4 | 3300232201322102333 |
5 | 13213331020213411 |
6 | 314424331051555 |
7 | 24450225344123 |
oct | 3605641722277 |
9 | 821154211428 |
10 | 258478679231 |
11 | 9a690526473 |
12 | 42117ba0bbb |
13 | 1b4b3830756 |
14 | c7208c1583 |
15 | 6acc36a4db |
hex | 3c2e87a4bf |
258478679231 has 8 divisors (see below), whose sum is σ = 259480975728. Its totient is φ = 257476968000.
The previous prime is 258478679227. The next prime is 258478679243. The reversal of 258478679231 is 132976874852.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 258478679231 - 22 = 258478679227 is a prime.
It is a super-3 number, since 3×2584786792313 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (258478679831) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749276 + ... + 1038446.
It is an arithmetic number, because the mean of its divisors is an integer number (32435121966).
Almost surely, 2258478679231 is an apocalyptic number.
258478679231 is a deficient number, since it is larger than the sum of its proper divisors (1002296497).
258478679231 is a wasteful number, since it uses less digits than its factorization.
258478679231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 292633.
The product of its digits is 40642560, while the sum is 62.
It can be divided in two parts, 25847 and 8679231, that added together give a palindrome (8705078).
The spelling of 258478679231 in words is "two hundred fifty-eight billion, four hundred seventy-eight million, six hundred seventy-nine thousand, two hundred thirty-one".
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