Base | Representation |
---|---|
bin | 10001110011100… |
… | …10010001110000 |
3 | 101102001120110100 |
4 | 20321302101300 |
5 | 301214201442 |
6 | 22453232400 |
7 | 3462406005 |
oct | 1071622160 |
9 | 342046410 |
10 | 149365872 |
11 | 77349877 |
12 | 42032700 |
13 | 24c39396 |
14 | 15ba18ac |
15 | d1a684c |
hex | 8e72470 |
149365872 has 60 divisors (see below), whose sum is σ = 425925864. Its totient is φ = 48846720.
The previous prime is 149365823. The next prime is 149365873. The reversal of 149365872 is 278563941.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (149365873) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2154 + ... + 17417.
Almost surely, 2149365872 is an apocalyptic number.
149365872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 149365872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212962932).
149365872 is an abundant number, since it is smaller than the sum of its proper divisors (276559992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
149365872 is a wasteful number, since it uses less digits than its factorization.
149365872 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19638 (or 19629 counting only the distinct ones).
The product of its digits is 362880, while the sum is 45.
The square root of 149365872 is about 12221.5331280490. The cubic root of 149365872 is about 530.5794919497.
The spelling of 149365872 in words is "one hundred forty-nine million, three hundred sixty-five thousand, eight hundred seventy-two".
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