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67989460 = 22573111753
BaseRepresentation
bin1000000110101…
…10111111010100
311201221020000011
410003112333110
5114401130320
610425130004
71453621000
oct403267724
9151836004
1067989460
1135418540
121a929904
1311116666
14905b700
155e8005a
hex40d6fd4

67989460 has 192 divisors, whose sum is σ = 195955200. Its totient is φ = 19568640.

The previous prime is 67989457. The next prime is 67989527. The reversal of 67989460 is 6498976.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1282794 + ... + 1282846.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600).

Almost surely, 267989460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67989460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97977600).

67989460 is an abundant number, since it is smaller than the sum of its proper divisors (127965740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67989460 is a wasteful number, since it uses less digits than its factorization.

67989460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 67989460 is about 8245.5721450970. The cubic root of 67989460 is about 408.1444205507.

The spelling of 67989460 in words is "sixty-seven million, nine hundred eighty-nine thousand, four hundred sixty".