Base | Representation |
---|---|
bin | 11011111100100101… |
… | …001111111011001001 |
3 | 2212110021021012222100 |
4 | 123330211033323021 |
5 | 442423400124021 |
6 | 21441335144013 |
7 | 2111416630134 |
oct | 337445177311 |
9 | 85407235870 |
10 | 30007426761 |
11 | 117a9456954 |
12 | 5995515009 |
13 | 2aa2a95630 |
14 | 164941d21b |
15 | ba95e4626 |
hex | 6fc94fec9 |
30007426761 has 24 divisors (see below), whose sum is σ = 46684741376. Its totient is φ = 18463528800.
The previous prime is 30007426759. The next prime is 30007426763. The reversal of 30007426761 is 16762470003.
It is an interprime number because it is at equal distance from previous prime (30007426759) and next prime (30007426763).
It is not a de Polignac number, because 30007426761 - 21 = 30007426759 is a prime.
It is a super-2 number, since 2×300074267612 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30007426763) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1143336 + ... + 1169286.
Almost surely, 230007426761 is an apocalyptic number.
It is an amenable number.
30007426761 is a deficient number, since it is larger than the sum of its proper divisors (16677314615).
30007426761 is a wasteful number, since it uses less digits than its factorization.
30007426761 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35853 (or 35850 counting only the distinct ones).
The product of its (nonzero) digits is 42336, while the sum is 36.
Adding to 30007426761 its reverse (16762470003), we get a palindrome (46769896764).
The spelling of 30007426761 in words is "thirty billion, seven million, four hundred twenty-six thousand, seven hundred sixty-one".
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