Base | Representation |
---|---|
bin | 11100010111110101… |
… | …000001101100100101 |
3 | 2220122010102100220120 |
4 | 130113311001230211 |
5 | 444342411010441 |
6 | 21554544552153 |
7 | 2125640245044 |
oct | 342765015445 |
9 | 86563370816 |
10 | 30464547621 |
11 | 11a13496592 |
12 | 5aa2622659 |
13 | 2b466b6551 |
14 | 169001255b |
15 | bd47dc966 |
hex | 717d41b25 |
30464547621 has 64 divisors (see below), whose sum is σ = 44161228800. Its totient is φ = 18612633600.
The previous prime is 30464547601. The next prime is 30464547637. The reversal of 30464547621 is 12674546403.
It is a happy number.
It is not a de Polignac number, because 30464547621 - 26 = 30464547557 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30464547601) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153088080 + ... + 153088278.
It is an arithmetic number, because the mean of its divisors is an integer number (690019200).
Almost surely, 230464547621 is an apocalyptic number.
It is an amenable number.
30464547621 is a deficient number, since it is larger than the sum of its proper divisors (13696681179).
30464547621 is a wasteful number, since it uses less digits than its factorization.
30464547621 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 666.
The product of its (nonzero) digits is 483840, while the sum is 42.
The spelling of 30464547621 in words is "thirty billion, four hundred sixty-four million, five hundred forty-seven thousand, six hundred twenty-one".
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