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67660113 = 343524497
BaseRepresentation
bin1000000100001…
…10100101010001
311201022111020010
410002012211101
5114310110423
610414105133
71451046543
oct402064521
9151274203
1067660113
1135213054
121a7ab1a9
131102c791
148db3693
155e17693
hex4086951

67660113 has 8 divisors (see below), whose sum is σ = 92311648. Its totient is φ = 44057664.

The previous prime is 67660093. The next prime is 67660157. The reversal of 67660113 is 31106676.

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

It is not a de Polignac number, because 67660113 - 25 = 67660081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67660193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262120 + ... + 262377.

It is an arithmetic number, because the mean of its divisors is an integer number (11538956).

Almost surely, 267660113 is an apocalyptic number.

It is an amenable number.

67660113 is a deficient number, since it is larger than the sum of its proper divisors (24651535).

67660113 is a wasteful number, since it uses less digits than its factorization.

67660113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524543.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 67660113 is about 8225.5767578936. The cubic root of 67660113 is about 407.4843242367.

Adding to 67660113 its reverse (31106676), we get a palindrome (98766789).

The spelling of 67660113 in words is "sixty-seven million, six hundred sixty thousand, one hundred thirteen".

Divisors: 1 3 43 129 524497 1573491 22553371 67660113