Base | Representation |
---|---|
bin | 10001101110110… |
… | …11101001101001 |
3 | 101100220020010201 |
4 | 20313123221221 |
5 | 301034431110 |
6 | 22432112201 |
7 | 3454226164 |
oct | 1067335151 |
9 | 340806121 |
10 | 148748905 |
11 | 76a68288 |
12 | 41995661 |
13 | 24a81606 |
14 | 15a80adb |
15 | d0d3b3a |
hex | 8ddba69 |
148748905 has 16 divisors (see below), whose sum is σ = 181678464. Its totient is φ = 116892160.
The previous prime is 148748903. The next prime is 148748933. The reversal of 148748905 is 509847841.
It is not a de Polignac number, because 148748905 - 21 = 148748903 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (148748903) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124722 + ... + 125908.
It is an arithmetic number, because the mean of its divisors is an integer number (11354904).
Almost surely, 2148748905 is an apocalyptic number.
It is an amenable number.
148748905 is a deficient number, since it is larger than the sum of its proper divisors (32929559).
148748905 is a wasteful number, since it uses less digits than its factorization.
148748905 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1616.
The product of its (nonzero) digits is 322560, while the sum is 46.
The square root of 148748905 is about 12196.2660269445. The cubic root of 148748905 is about 529.8479509249.
The spelling of 148748905 in words is "one hundred forty-eight million, seven hundred forty-eight thousand, nine hundred five".
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