Base | Representation |
---|---|
bin | 11100010101011100… |
… | …110000011110000100 |
3 | 2220112100022101211120 |
4 | 130111130300132010 |
5 | 444302201144142 |
6 | 21551001233540 |
7 | 2124644045415 |
oct | 342534603604 |
9 | 86470271746 |
10 | 30424631172 |
11 | 119a2a02791 |
12 | 5a911928b0 |
13 | 2b3b34ba50 |
14 | 16889c180c |
15 | bd10557ec |
hex | 715730784 |
30424631172 has 96 divisors (see below), whose sum is σ = 78298907904. Its totient is φ = 9137856000.
The previous prime is 30424631141. The next prime is 30424631189. The reversal of 30424631172 is 27113642403.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1105078 + ... + 1132274.
It is an arithmetic number, because the mean of its divisors is an integer number (815613624).
Almost surely, 230424631172 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30424631172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39149453952).
30424631172 is an abundant number, since it is smaller than the sum of its proper divisors (47874276732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30424631172 is a wasteful number, since it uses less digits than its factorization.
30424631172 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27389 (or 27387 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 33.
The spelling of 30424631172 in words is "thirty billion, four hundred twenty-four million, six hundred thirty-one thousand, one hundred seventy-two".
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