Base | Representation |
---|---|
bin | 1000111111111110010… |
… | …1000000000001010000 |
3 | 112210002011021102111022 |
4 | 2033333211000001100 |
5 | 10013121101313343 |
6 | 155005550135012 |
7 | 14112265101341 |
oct | 2177745000120 |
9 | 483064242438 |
10 | 154611744848 |
11 | 5a630332330 |
12 | 25b6b1b1468 |
13 | 1176cb4c572 |
14 | 76aa0680c8 |
15 | 404d8e2568 |
hex | 23ff940050 |
154611744848 has 160 divisors (see below), whose sum is σ = 347937230592. Its totient is φ = 65863987200.
The previous prime is 154611744841. The next prime is 154611744851. The reversal of 154611744848 is 848447116451.
It is a Cunningham number, because it is equal to 3932072-1.
It is a self number, because there is not a number n which added to its sum of digits gives 154611744848.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (154611744841) 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, 72348836 + ... + 72350972.
Almost surely, 2154611744848 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 154611744848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173968615296).
154611744848 is an abundant number, since it is smaller than the sum of its proper divisors (193325485744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
154611744848 is a wasteful number, since it uses less digits than its factorization.
With its predecessor (154611744847) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (2527).
154611744848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2533 (or 2527 counting only the distinct ones).
The product of its digits is 3440640, while the sum is 53.
The spelling of 154611744848 in words is "one hundred fifty-four billion, six hundred eleven million, seven hundred forty-four thousand, eight hundred forty-eight".
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