Base | Representation |
---|---|
bin | 111010000101… |
… | …1001111010011 |
3 | 2010022021001022 |
4 | 1310023033103 |
5 | 30244022424 |
6 | 3004430055 |
7 | 516601220 |
oct | 164131723 |
9 | 63267038 |
10 | 30454739 |
11 | 16211107 |
12 | a24832b |
13 | 6403c73 |
14 | 408a947 |
15 | 2a1895e |
hex | 1d0b3d3 |
30454739 has 8 divisors (see below), whose sum is σ = 36637440. Its totient is φ = 24730056.
The previous prime is 30454729. The next prime is 30454763. The reversal of 30454739 is 93745403.
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 30454739 - 220 = 29406163 is a prime.
It is a super-2 number, since 2×304547392 = 1854982255116242, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30454699 and 30454708.
It is not an unprimeable number, because it can be changed into a prime (30454729) 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, 114359 + ... + 114624.
It is an arithmetic number, because the mean of its divisors is an integer number (4579680).
Almost surely, 230454739 is an apocalyptic number.
30454739 is a deficient number, since it is larger than the sum of its proper divisors (6182701).
30454739 is a wasteful number, since it uses less digits than its factorization.
30454739 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 229009.
The product of its (nonzero) digits is 45360, while the sum is 35.
The square root of 30454739 is about 5518.5812488356. The cubic root of 30454739 is about 312.2853617311.
The spelling of 30454739 in words is "thirty million, four hundred fifty-four thousand, seven hundred thirty-nine".
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