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67825047 = 322608349
BaseRepresentation
bin1000000101011…
…10110110010111
311201121212110210
410002232312113
5114330400142
610421420503
71452334443
oct402566627
9151555423
1067825047
1135315a64
121a86a733
1311089884
149017823
155e4b49c
hex40aed97

67825047 has 4 divisors (see below), whose sum is σ = 90433400. Its totient is φ = 45216696.

The previous prime is 67825039. The next prime is 67825049. The reversal of 67825047 is 74052876.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 67825047 - 23 = 67825039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67824996 and 67825014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67825049) 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, 11304172 + ... + 11304177.

It is an arithmetic number, because the mean of its divisors is an integer number (22608350).

Almost surely, 267825047 is an apocalyptic number.

67825047 is a deficient number, since it is larger than the sum of its proper divisors (22608353).

67825047 is a wasteful number, since it uses less digits than its factorization.

67825047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22608352.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 67825047 is about 8235.5963354210. The cubic root of 67825047 is about 407.8151616127.

The spelling of 67825047 in words is "sixty-seven million, eight hundred twenty-five thousand, forty-seven".

Divisors: 1 3 22608349 67825047