Base | Representation |
---|---|
bin | 1101111100001100011100… |
… | …01100001001110011110011 |
3 | 11000112122101011221002220111 |
4 | 12332012032030021303303 |
5 | 13004230100142022011 |
6 | 145110550110122151 |
7 | 6312535350223111 |
oct | 676061614116363 |
9 | 130478334832814 |
10 | 30655567142131 |
11 | 9849a5350aa08 |
12 | 35313074b0357 |
13 | 1414a6632abc9 |
14 | 77da47494ab1 |
15 | 38264d120121 |
hex | 1be18e309cf3 |
30655567142131 has 2 divisors, whose sum is σ = 30655567142132. Its totient is φ = 30655567142130.
The previous prime is 30655567142059. The next prime is 30655567142177. The reversal of 30655567142131 is 13124176555603.
It is a strong prime.
It is an emirp because it is prime and its reverse (13124176555603) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30655567142131 - 229 = 30655030271219 is a prime.
It is a super-2 number, since 2×306555671421312 (a number of 28 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (30655567142831) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15327783571065 + 15327783571066.
It is an arithmetic number, because the mean of its divisors is an integer number (15327783571066).
Almost surely, 230655567142131 is an apocalyptic number.
30655567142131 is a deficient number, since it is larger than the sum of its proper divisors (1).
30655567142131 is an equidigital number, since it uses as much as digits as its factorization.
30655567142131 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2268000, while the sum is 49.
The spelling of 30655567142131 in words is "thirty trillion, six hundred fifty-five billion, five hundred sixty-seven million, one hundred forty-two thousand, one hundred thirty-one".
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