Base | Representation |
---|---|
bin | 10000001110010… |
… | …100110100111100 |
3 | 200222011201120000 |
4 | 100032110310330 |
5 | 1024140101110 |
6 | 43001554300 |
7 | 6513404061 |
oct | 2016246474 |
9 | 628151500 |
10 | 272190780 |
11 | 12a70aa64 |
12 | 771a5990 |
13 | 44512044 |
14 | 28214c68 |
15 | 18d691c0 |
hex | 10394d3c |
272190780 has 120 divisors (see below), whose sum is σ = 858044880. Its totient is φ = 72230400.
The previous prime is 272190769. The next prime is 272190811. The reversal of 272190780 is 87091272.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 649411 + ... + 649829.
It is an arithmetic number, because the mean of its divisors is an integer number (7150374).
Almost surely, 2272190780 is an apocalyptic number.
272190780 is a gapful number since it is divisible by the number (20) 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 272190780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429022440).
272190780 is an abundant number, since it is smaller than the sum of its proper divisors (585854100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
272190780 is a wasteful number, since it uses less digits than its factorization.
272190780 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 841 (or 830 counting only the distinct ones).
The product of its (nonzero) digits is 14112, while the sum is 36.
The square root of 272190780 is about 16498.2053569472. The cubic root of 272190780 is about 648.0738084652.
The spelling of 272190780 in words is "two hundred seventy-two million, one hundred ninety thousand, seven hundred eighty".
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