Base | Representation |
---|---|
bin | 11100000100100110… |
… | …011111101111011010 |
3 | 2212210122102210112210 |
4 | 130010212133233122 |
5 | 443212321041133 |
6 | 21502543015550 |
7 | 2114642346456 |
oct | 340446375732 |
9 | 85718383483 |
10 | 30141971418 |
11 | 118683a2289 |
12 | 5a1259a5b6 |
13 | 2ac4912860 |
14 | 165d243666 |
15 | bb631e763 |
hex | 70499fbda |
30141971418 has 64 divisors (see below), whose sum is σ = 65847398400. Its totient is φ = 9142511040.
The previous prime is 30141971399. The next prime is 30141971443. The reversal of 30141971418 is 81417914103.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (39).
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, 4254403 + ... + 4261481.
It is an arithmetic number, because the mean of its divisors is an integer number (1028865600).
Almost surely, 230141971418 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30141971418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32923699200).
30141971418 is an abundant number, since it is smaller than the sum of its proper divisors (35705426982).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30141971418 is a wasteful number, since it uses less digits than its factorization.
30141971418 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7867.
The product of its (nonzero) digits is 24192, while the sum is 39.
The spelling of 30141971418 in words is "thirty billion, one hundred forty-one million, nine hundred seventy-one thousand, four hundred eighteen".
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