Base | Representation |
---|---|
bin | 1000101010000001010… |
… | …1111000111100010001 |
3 | 112012212111000000000000 |
4 | 2022200111320330101 |
5 | 4414034024342011 |
6 | 152153123520213 |
7 | 13513252323432 |
oct | 2124025707421 |
9 | 465774000000 |
10 | 148718980881 |
11 | 58086a95569 |
12 | 249a5829069 |
13 | 1104105ba93 |
14 | 72ab5b1489 |
15 | 3d063dd356 |
hex | 22a0578f11 |
148718980881 has 65 divisors (see below), whose sum is σ = 233218219321. Its totient is φ = 94835292156.
The previous prime is 148718980853. The next prime is 148718980889. The reversal of 148718980881 is 188089817841.
It is a happy number.
The square root of 148718980881 is 385641.
It is a perfect power (a square, a biquadrate), and thus also a powerful number.
It is not a de Polignac number, because 148718980881 - 211 = 148718978833 is a prime.
It is a super-2 number, since 2×1487189808812 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (148718980889) by changing a digit.
It is a polite number, since it can be written in 64 ways as a sum of consecutive naturals, for example, 6466042636 + ... + 6466042658.
Almost surely, 2148718980881 is an apocalyptic number.
148718980881 is the 385641-st square number.
148718980881 is the 192821-st centered octagonal number.
It is an amenable number.
148718980881 is a deficient number, since it is larger than the sum of its proper divisors (84499238440).
148718980881 is an frugal number, since it uses more digits than its factorization.
148718980881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 128 (or 26 counting only the distinct ones).
The product of its (nonzero) digits is 8257536, while the sum is 63.
The spelling of 148718980881 in words is "one hundred forty-eight billion, seven hundred eighteen million, nine hundred eighty thousand, eight hundred eighty-one".
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