Base | Representation |
---|---|
bin | 11100101000100000… |
… | …100001101101100001 |
3 | 2221100121222122112211 |
4 | 130220200201231201 |
5 | 1000431030331101 |
6 | 22042422522121 |
7 | 2135605654411 |
oct | 345040415541 |
9 | 87317878484 |
10 | 30744386401 |
11 | 1204744a603 |
12 | 5b60296341 |
13 | 2b8c675721 |
14 | 16b9258641 |
15 | bee167c51 |
hex | 728821b61 |
30744386401 has 4 divisors (see below), whose sum is σ = 30745936900. Its totient is φ = 30742835904.
The previous prime is 30744386399. The next prime is 30744386411. The reversal of 30744386401 is 10468344703.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 19247400225 + 11496986176 = 138735^2 + 107224^2 .
It is a cyclic number.
It is not a de Polignac number, because 30744386401 - 21 = 30744386399 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30744386411) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745116 + ... + 785293.
It is an arithmetic number, because the mean of its divisors is an integer number (7686484225).
Almost surely, 230744386401 is an apocalyptic number.
It is an amenable number.
30744386401 is a deficient number, since it is larger than the sum of its proper divisors (1550499).
30744386401 is a wasteful number, since it uses less digits than its factorization.
30744386401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1550498.
The product of its (nonzero) digits is 193536, while the sum is 40.
The spelling of 30744386401 in words is "thirty billion, seven hundred forty-four million, three hundred eighty-six thousand, four hundred one".
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