Base | Representation |
---|---|
bin | 10110101010001… |
… | …111100111100100 |
3 | 222111100210000001 |
4 | 112222033213210 |
5 | 1234311012042 |
6 | 101420231044 |
7 | 12264262300 |
oct | 2652174744 |
9 | 874323001 |
10 | 380172772 |
11 | 185663481 |
12 | a739b484 |
13 | 609bba05 |
14 | 386c2d00 |
15 | 23598bb7 |
hex | 16a8f9e4 |
380172772 has 18 divisors (see below), whose sum is σ = 773923542. Its totient is φ = 162931104.
The previous prime is 380172769. The next prime is 380172781. The reversal of 380172772 is 277271083.
It can be written as a sum of positive squares in only one way, i.e., 352463076 + 27709696 = 18774^2 + 5264^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 969633 + ... + 970024.
Almost surely, 2380172772 is an apocalyptic number.
It is an amenable number.
380172772 is an abundant number, since it is smaller than the sum of its proper divisors (393750770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380172772 is a wasteful number, since it uses less digits than its factorization.
380172772 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1939675 (or 1939666 counting only the distinct ones).
The product of its (nonzero) digits is 32928, while the sum is 37.
The square root of 380172772 is about 19498.0196943177. The cubic root of 380172772 is about 724.4254009245.
The spelling of 380172772 in words is "three hundred eighty million, one hundred seventy-two thousand, seven hundred seventy-two".
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