Base | Representation |
---|---|
bin | 111111101111111… |
… | …0001111001011000 |
3 | 12112001222100111200 |
4 | 1333133301321120 |
5 | 13340043143042 |
6 | 552130554200 |
7 | 104002342161 |
oct | 17737617130 |
9 | 5461870450 |
10 | 2139037272 |
11 | 9a84813a9 |
12 | 4b8438960 |
13 | 281208438 |
14 | 16412c768 |
15 | c7bc8c4c |
hex | 7f7f1e58 |
2139037272 has 48 divisors (see below), whose sum is σ = 5795375040. Its totient is φ = 712747968.
The previous prime is 2139037261. The next prime is 2139037273. The reversal of 2139037272 is 2727309312.
2139037272 is a `hidden beast` number, since 213 + 9 + 0 + 372 + 72 = 666.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2139037273) 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, 335458 + ... + 341774.
It is an arithmetic number, because the mean of its divisors is an integer number (120736980).
Almost surely, 22139037272 is an apocalyptic number.
It is an amenable number.
2139037272 is an abundant number, since it is smaller than the sum of its proper divisors (3656337768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2139037272 is a wasteful number, since it uses less digits than its factorization.
2139037272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11032 (or 11025 counting only the distinct ones).
The product of its (nonzero) digits is 31752, while the sum is 36.
The square root of 2139037272 is about 46249.7272640607. The cubic root of 2139037272 is about 1288.4654693424.
The spelling of 2139037272 in words is "two billion, one hundred thirty-nine million, thirty-seven thousand, two hundred seventy-two".
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