Search a number
-
+
67206997 = 1113469979
BaseRepresentation
bin1000000000101…
…11111101010101
311200110110200001
410000113331111
5114201110442
610400251301
71444151524
oct400277525
9150413601
1067206997
1134a33680
121a610b31
1310c01470
148cd64bb
155d782b7
hex4017f55

67206997 has 8 divisors (see below), whose sum is σ = 78956640. Its totient is φ = 56397360.

The previous prime is 67206983. The next prime is 67207013. The reversal of 67206997 is 79960276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67206997 - 27 = 67206869 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 (67206197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234847 + ... + 235132.

It is an arithmetic number, because the mean of its divisors is an integer number (9869580).

Almost surely, 267206997 is an apocalyptic number.

It is an amenable number.

67206997 is a deficient number, since it is larger than the sum of its proper divisors (11749643).

67206997 is a wasteful number, since it uses less digits than its factorization.

67206997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470003.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 67206997 is about 8197.9873749598. The cubic root of 67206997 is about 406.5726528023.

The spelling of 67206997 in words is "sixty-seven million, two hundred six thousand, nine hundred ninety-seven".

Divisors: 1 11 13 143 469979 5169769 6109727 67206997