Base | Representation |
---|---|
bin | 11100001011111… |
… | …110010101110101 |
3 | 1012221211212012011 |
4 | 130023332111311 |
5 | 1432030312411 |
6 | 114531524221 |
7 | 14501410030 |
oct | 3413762565 |
9 | 1187755164 |
10 | 472900981 |
11 | 222a38563 |
12 | 112459671 |
13 | 76c87687 |
14 | 46b40017 |
15 | 2b7b3c21 |
hex | 1c2fe575 |
472900981 has 8 divisors (see below), whose sum is σ = 551957760. Its totient is φ = 396719088.
The previous prime is 472900973. The next prime is 472901003. The reversal of 472900981 is 189009274.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 472900981 - 23 = 472900973 is a prime.
It is a super-2 number, since 2×4729009812 = 447270675661524722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (472900921) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718366 + ... + 719023.
It is an arithmetic number, because the mean of its divisors is an integer number (68994720).
Almost surely, 2472900981 is an apocalyptic number.
It is an amenable number.
472900981 is a deficient number, since it is larger than the sum of its proper divisors (79056779).
472900981 is a wasteful number, since it uses less digits than its factorization.
472900981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1437443.
The product of its (nonzero) digits is 36288, while the sum is 40.
The square root of 472900981 is about 21746.2866025444. The cubic root of 472900981 is about 779.0943801216.
The spelling of 472900981 in words is "four hundred seventy-two million, nine hundred thousand, nine hundred eighty-one".
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