Base | Representation |
---|---|
bin | 10001110000000… |
… | …11101001010000 |
3 | 101101012112211221 |
4 | 20320003221100 |
5 | 301110201340 |
6 | 22435414424 |
7 | 3455510605 |
oct | 1070035120 |
9 | 341175757 |
10 | 148912720 |
11 | 7706a370 |
12 | 41a54414 |
13 | 24b0b048 |
14 | 15ac46ac |
15 | d11744a |
hex | 8e03a50 |
148912720 has 40 divisors (see below), whose sum is σ = 377699040. Its totient is φ = 54149760.
The previous prime is 148912717. The next prime is 148912723. The reversal of 148912720 is 27219841.
It is an interprime number because it is at equal distance from previous prime (148912717) and next prime (148912723).
It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (148912723) 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, 83730 + ... + 85489.
It is an arithmetic number, because the mean of its divisors is an integer number (9442476).
Almost surely, 2148912720 is an apocalyptic number.
148912720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
148912720 is an abundant number, since it is smaller than the sum of its proper divisors (228786320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
148912720 is a wasteful number, since it uses less digits than its factorization.
148912720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 169243 (or 169237 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 34.
The square root of 148912720 is about 12202.9799639268. The cubic root of 148912720 is about 530.0423841742.
The spelling of 148912720 in words is "one hundred forty-eight million, nine hundred twelve thousand, seven hundred twenty".
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