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67930495 = 513586099
BaseRepresentation
bin1000000110010…
…00100101111111
311201211020010021
410003020211333
5114342233440
610423553011
71453254043
oct403104577
9151736107
1067930495
1135388206
121a8bb767
13110c5879
149044023
155e6c84a
hex40c897f

67930495 has 4 divisors (see below), whose sum is σ = 81516600. Its totient is φ = 54344392.

The previous prime is 67930493. The next prime is 67930501. The reversal of 67930495 is 59403976.

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

It is a cyclic number.

It is not a de Polignac number, because 67930495 - 21 = 67930493 is a prime.

It is a super-2 number, since 2×679304952 = 9229104301890050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67930493) 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 3 ways as a sum of consecutive naturals, for example, 6793045 + ... + 6793054.

It is an arithmetic number, because the mean of its divisors is an integer number (20379150).

Almost surely, 267930495 is an apocalyptic number.

67930495 is a deficient number, since it is larger than the sum of its proper divisors (13586105).

67930495 is a wasteful number, since it uses less digits than its factorization.

67930495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13586104.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 67930495 is about 8241.9958141217. The cubic root of 67930495 is about 408.0263963923.

The spelling of 67930495 in words is "sixty-seven million, nine hundred thirty thousand, four hundred ninety-five".

Divisors: 1 5 13586099 67930495