Base | Representation |
---|---|
bin | 10001101001011… |
… | …11010011011011 |
3 | 101022120100210000 |
4 | 20310233103123 |
5 | 300344333341 |
6 | 22405024043 |
7 | 3445226106 |
oct | 1064572333 |
9 | 338510700 |
10 | 148042971 |
11 | 7662596a |
12 | 416b5023 |
13 | 248951bb |
14 | 1593973d |
15 | cee48b6 |
hex | 8d2f4db |
148042971 has 20 divisors (see below), whose sum is σ = 221478400. Its totient is φ = 98549136.
The previous prime is 148042931. The next prime is 148042981. The reversal of 148042971 is 179240841.
It is not a de Polignac number, because 148042971 - 26 = 148042907 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (148042901) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 102885 + ... + 104313.
It is an arithmetic number, because the mean of its divisors is an integer number (11073920).
Almost surely, 2148042971 is an apocalyptic number.
148042971 is a deficient number, since it is larger than the sum of its proper divisors (73435429).
148042971 is a wasteful number, since it uses less digits than its factorization.
148042971 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2720 (or 2711 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 36.
The square root of 148042971 is about 12167.2910296417. The cubic root of 148042971 is about 529.0084356082.
The spelling of 148042971 in words is "one hundred forty-eight million, forty-two thousand, nine hundred seventy-one".
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