Base | Representation |
---|---|
bin | 111111001011000010… |
… | …100000101011111101 |
3 | 20111002020212220022012 |
4 | 333023002200223331 |
5 | 2102404210124321 |
6 | 51054444301005 |
7 | 4620625332512 |
oct | 771302405375 |
9 | 214066786265 |
10 | 67830942461 |
11 | 26848887037 |
12 | 11190541765 |
13 | 651cc5ac59 |
14 | 33d6911309 |
15 | 1b6eea705b |
hex | fcb0a0afd |
67830942461 has 4 divisors (see below), whose sum is σ = 67844198400. Its totient is φ = 67817686524.
The previous prime is 67830942437. The next prime is 67830942479. The reversal of 67830942461 is 16424903876.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-67830942461 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67830942401) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6620291 + ... + 6630528.
It is an arithmetic number, because the mean of its divisors is an integer number (16961049600).
Almost surely, 267830942461 is an apocalyptic number.
It is an amenable number.
67830942461 is a deficient number, since it is larger than the sum of its proper divisors (13255939).
67830942461 is a wasteful number, since it uses less digits than its factorization.
67830942461 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13255938.
The product of its (nonzero) digits is 1741824, while the sum is 50.
The spelling of 67830942461 in words is "sixty-seven billion, eight hundred thirty million, nine hundred forty-two thousand, four hundred sixty-one".
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