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67214369 = 1271573371
BaseRepresentation
bin1000000000110…
…01110000100001
311200110211210002
410000121300201
5114201324434
610400345345
71444212155
oct400316041
9150424702
1067214369
1134a39172
121a615255
1310c04921
148cd9065
155d7a57e
hex4019c21

67214369 has 8 divisors (see below), whose sum is σ = 68195328. Its totient is φ = 66240720.

The previous prime is 67214363. The next prime is 67214383. The reversal of 67214369 is 96341276.

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 67214369 - 220 = 66165793 is a prime.

It is a super-2 number, since 2×672143692 = 9035542800136322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67214363) 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, 18254 + ... + 21624.

It is an arithmetic number, because the mean of its divisors is an integer number (8524416).

Almost surely, 267214369 is an apocalyptic number.

It is an amenable number.

67214369 is a deficient number, since it is larger than the sum of its proper divisors (980959).

67214369 is a wasteful number, since it uses less digits than its factorization.

67214369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655.

The product of its digits is 54432, while the sum is 38.

The square root of 67214369 is about 8198.4369851820. The cubic root of 67214369 is about 406.5875180403.

The spelling of 67214369 in words is "sixty-seven million, two hundred fourteen thousand, three hundred sixty-nine".

Divisors: 1 127 157 3371 19939 428117 529247 67214369