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67313684 = 2278721383
BaseRepresentation
bin1000000001100…
…10000000010100
311200122220000102
410000302000110
5114213014214
610402433232
71445104544
oct400620024
9150586012
1067313684
1134aa6849
121a662818
1310c3aba9
148d23324
155d99bde
hex4032014

67313684 has 12 divisors (see below), whose sum is σ = 117954144. Its totient is φ = 33612504.

The previous prime is 67313681. The next prime is 67313689. The reversal of 67313684 is 48631376.

It is a super-2 number, since 2×673136842 = 9062264107303712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67313681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7544 + ... + 13839.

It is an arithmetic number, because the mean of its divisors is an integer number (9829512).

Almost surely, 267313684 is an apocalyptic number.

It is an amenable number.

67313684 is a deficient number, since it is larger than the sum of its proper divisors (50640460).

67313684 is a wasteful number, since it uses less digits than its factorization.

67313684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22174 (or 22172 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 67313684 is about 8204.4916966257. The cubic root of 67313684 is about 406.7876754761.

The spelling of 67313684 in words is "sixty-seven million, three hundred thirteen thousand, six hundred eighty-four".

Divisors: 1 2 4 787 1574 3148 21383 42766 85532 16828421 33656842 67313684