Base | Representation |
---|---|
bin | 11100010001100010… |
… | …011000111011000000 |
3 | 2220100202210221001000 |
4 | 130101202120323000 |
5 | 444133400424340 |
6 | 21540254412000 |
7 | 2123216142231 |
oct | 342142307300 |
9 | 86322727030 |
10 | 30358998720 |
11 | 11969955096 |
12 | 5a73201000 |
13 | 2b2a87c18b |
14 | 167ddb9088 |
15 | bca3ddd30 |
hex | 711898ec0 |
30358998720 has 224 divisors, whose sum is σ = 108104025600. Its totient is φ = 8019827712.
The previous prime is 30358998707. The next prime is 30358998737. The reversal of 30358998720 is 2789985303.
It is a happy number.
30358998720 is a `hidden beast` number, since 30 + 3 + 589 + 9 + 8 + 7 + 20 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
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, 908061 + ... + 940899.
Almost surely, 230358998720 is an apocalyptic number.
30358998720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30358998720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54052012800).
30358998720 is an abundant number, since it is smaller than the sum of its proper divisors (77745026880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30358998720 is a wasteful number, since it uses less digits than its factorization.
30358998720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32972 (or 32956 counting only the distinct ones).
The product of its (nonzero) digits is 3265920, while the sum is 54.
The spelling of 30358998720 in words is "thirty billion, three hundred fifty-eight million, nine hundred ninety-eight thousand, seven hundred twenty".
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