Base | Representation |
---|---|
bin | 11100101001010100… |
… | …010001101100100000 |
3 | 2221101120111212110002 |
4 | 130221110101230200 |
5 | 1000443013433123 |
6 | 22044025355132 |
7 | 2136132165200 |
oct | 345124215440 |
9 | 87346455402 |
10 | 30757952288 |
11 | 12054075888 |
12 | 5b64938aa8 |
13 | 2b9241538b |
14 | 16bad8a400 |
15 | c00447528 |
hex | 729511b20 |
30757952288 has 162 divisors, whose sum is σ = 72824435019. Its totient is φ = 12750417792.
The previous prime is 30757952257. The next prime is 30757952297. The reversal of 30757952288 is 88225975703.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in only one way, i.e., 15378976144 + 15378976144 = 124012^2 + 124012^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=124012.
It is a Harshad number since it is a multiple of its sum of digits (56).
It is an unprimeable number.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 298620845 + ... + 298620947.
Almost surely, 230757952288 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 30757952288
30757952288 is an abundant number, since it is smaller than the sum of its proper divisors (42066482731).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30757952288 is an equidigital number, since it uses as much as digits as its factorization.
30757952288 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 316 (or 155 counting only the distinct ones).
The product of its (nonzero) digits is 8467200, while the sum is 56.
The spelling of 30757952288 in words is "thirty billion, seven hundred fifty-seven million, nine hundred fifty-two thousand, two hundred eighty-eight".
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