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67116988 = 2216779247
BaseRepresentation
bin1000000000000…
…01111110111100
311200021220012101
410000001332330
5114140220423
610354314444
71443325231
oct400017674
9150256171
1067116988
1134981a94
121a588a24
1310b9c4c3
148cb1788
155d5b7ad
hex4001fbc

67116988 has 6 divisors (see below), whose sum is σ = 117454736. Its totient is φ = 33558492.

The previous prime is 67116977. The next prime is 67116989. The reversal of 67116988 is 88961176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67116989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8389620 + ... + 8389627.

Almost surely, 267116988 is an apocalyptic number.

It is an amenable number.

67116988 is a deficient number, since it is larger than the sum of its proper divisors (50337748).

67116988 is a wasteful number, since it uses less digits than its factorization.

67116988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16779251 (or 16779249 counting only the distinct ones).

The product of its digits is 145152, while the sum is 46.

The square root of 67116988 is about 8192.4958346038. The cubic root of 67116988 is about 406.3910668129.

The spelling of 67116988 in words is "sixty-seven million, one hundred sixteen thousand, nine hundred eighty-eight".

Divisors: 1 2 4 16779247 33558494 67116988