Base | Representation |
---|---|
bin | 10110101010011… |
… | …010000110010101 |
3 | 222111102221220000 |
4 | 112222122012111 |
5 | 1234313400301 |
6 | 101421201513 |
7 | 12264531405 |
oct | 2652320625 |
9 | 874387800 |
10 | 380215701 |
11 | 185692758 |
12 | a7400299 |
13 | 60a05408 |
14 | 386d4805 |
15 | 235a6786 |
hex | 16a9a195 |
380215701 has 20 divisors (see below), whose sum is σ = 569346624. Its totient is φ = 252865800.
The previous prime is 380215699. The next prime is 380215709. The reversal of 380215701 is 107512083.
380215701 is a `hidden beast` number, since 380 + 215 + 70 + 1 = 666.
It is not a de Polignac number, because 380215701 - 21 = 380215699 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380215709) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29466 + ... + 40356.
Almost surely, 2380215701 is an apocalyptic number.
It is an amenable number.
380215701 is a deficient number, since it is larger than the sum of its proper divisors (189130923).
380215701 is a wasteful number, since it uses less digits than its factorization.
380215701 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11334 (or 11325 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 27.
The square root of 380215701 is about 19499.1205186285. The cubic root of 380215701 is about 724.4526672008.
Adding to 380215701 its reverse (107512083), we get a palindrome (487727784).
It can be divided in two parts, 3802 and 15701, that added together give a triangular number (19503 = T197).
The spelling of 380215701 in words is "three hundred eighty million, two hundred fifteen thousand, seven hundred one".
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