Base | Representation |
---|---|
bin | 11100000011111110… |
… | …100000011001101101 |
3 | 2212202220201012111120 |
4 | 130003332200121231 |
5 | 443202130111430 |
6 | 21501530211153 |
7 | 2114454265566 |
oct | 340376403155 |
9 | 85686635446 |
10 | 30131488365 |
11 | 11862492200 |
12 | 5a0ab83ab9 |
13 | 2ac26b2174 |
14 | 165bab516d |
15 | bb544d610 |
hex | 703fa066d |
30131488365 has 48 divisors (see below), whose sum is σ = 53487169344. Its totient is φ = 14472578560.
The previous prime is 30131488351. The next prime is 30131488367. The reversal of 30131488365 is 56388413103.
It is not a de Polignac number, because 30131488365 - 24 = 30131488349 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30131488367) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116629 + ... + 271781.
It is an arithmetic number, because the mean of its divisors is an integer number (1114316028).
Almost surely, 230131488365 is an apocalyptic number.
It is an amenable number.
30131488365 is a deficient number, since it is larger than the sum of its proper divisors (23355680979).
30131488365 is a wasteful number, since it uses less digits than its factorization.
30131488365 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 155290 (or 155279 counting only the distinct ones).
The product of its (nonzero) digits is 207360, while the sum is 42.
The spelling of 30131488365 in words is "thirty billion, one hundred thirty-one million, four hundred eighty-eight thousand, three hundred sixty-five".
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