Base | Representation |
---|---|
bin | 11100100011100… |
… | …10000000000000 |
3 | 121200202000020000 |
4 | 32101302000000 |
5 | 442310323042 |
6 | 35434120000 |
7 | 5636034654 |
oct | 1621620000 |
9 | 550660200 |
10 | 239542272 |
11 | 113240722 |
12 | 68280000 |
13 | 3a8206b8 |
14 | 23b56a64 |
15 | 1606a74c |
hex | e472000 |
239542272 has 210 divisors, whose sum is σ = 755272683. Its totient is φ = 75644928.
The previous prime is 239542249. The next prime is 239542307. The reversal of 239542272 is 272245932.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in only one way, i.e., 119771136 + 119771136 = 10944^2 + 10944^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=10944.
It is a Harshad number since it is a multiple of its sum of digits (36).
Its product of digits (60480) is a multiple of the sum of its prime divisors (24).
It is an unprimeable number.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 12607479 + ... + 12607497.
Almost surely, 2239542272 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 239542272
239542272 is an abundant number, since it is smaller than the sum of its proper divisors (515730411).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
239542272 is an frugal number, since it uses more digits than its factorization.
239542272 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 76 (or 24 counting only the distinct ones).
The product of its digits is 60480, while the sum is 36.
The square root of 239542272 is about 15477.1532266112. The cubic root of 239542272 is about 621.0511755067.
The spelling of 239542272 in words is "two hundred thirty-nine million, five hundred forty-two thousand, two hundred seventy-two".
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