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67970 = 257971
BaseRepresentation
bin10000100110000010
310110020102
4100212002
54133340
61242402
7402110
oct204602
9113212
1067970
1147081
1233402
1324c26
141aab0
1515215
hex10982

67970 has 16 divisors (see below), whose sum is σ = 139968. Its totient is φ = 23280.

The previous prime is 67967. The next prime is 67979. The reversal of 67970 is 7976.

67970 = T44 + T45 + ... + T78.

It is not an unprimeable number, because it can be changed into a prime (67979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416 + ... + 555.

It is an arithmetic number, because the mean of its divisors is an integer number (8748).

267970 is an apocalyptic number.

67970 is an abundant number, since it is smaller than the sum of its proper divisors (71998).

It is a weird number, because it is abundant, but not a pseudoperfect number.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69984).

67970 is a wasteful number, since it uses less digits than its factorization.

67970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 67970 is about 260.7105674882. The cubic root of 67970 is about 40.8105477023.

The spelling of 67970 in words is "sixty-seven thousand, nine hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 971 1942 4855 6797 9710 13594 33985 67970