Base | Representation |
---|---|
bin | 11100001011000111… |
… | …101100011101010000 |
3 | 2220002021020011200100 |
4 | 130023013230131100 |
5 | 443423320300202 |
6 | 21521451052400 |
7 | 2120441061252 |
oct | 341307543520 |
9 | 86067204610 |
10 | 30251337552 |
11 | 11914100717 |
12 | 5a43141100 |
13 | 2b11485547 |
14 | 166d991cd2 |
15 | bc0c2441c |
hex | 70b1ec750 |
30251337552 has 60 divisors (see below), whose sum is σ = 84714866964. Its totient is φ = 10077450240.
The previous prime is 30251337547. The next prime is 30251337583. The reversal of 30251337552 is 25573315203.
30251337552 is a `hidden beast` number, since 30 + 251 + 3 + 375 + 5 + 2 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 18540634896 + 11710702656 = 136164^2 + 108216^2 .
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167152 + ... + 297392.
Almost surely, 230251337552 is an apocalyptic number.
It is an amenable number.
30251337552 is an abundant number, since it is smaller than the sum of its proper divisors (54463529412).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30251337552 is a wasteful number, since it uses less digits than its factorization.
30251337552 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 131868 (or 131859 counting only the distinct ones).
The product of its (nonzero) digits is 94500, while the sum is 36.
The spelling of 30251337552 in words is "thirty billion, two hundred fifty-one million, three hundred thirty-seven thousand, five hundred fifty-two".
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