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67214070 = 23357115361
BaseRepresentation
bin1000000000110…
…01101011110110
311200110211101000
410000121223312
5114201322240
610400344130
71444211250
oct400315366
9150424330
1067214070
1134a38a20
121a615046
1310c04751
148cd8cd0
155d7a430
hex4019af6

67214070 has 256 divisors, whose sum is σ = 231413760. Its totient is φ = 13478400.

The previous prime is 67214057. The next prime is 67214099. The reversal of 67214070 is 7041276.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1101840 + ... + 1101900.

It is an arithmetic number, because the mean of its divisors is an integer number (903960).

Almost surely, 267214070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67214070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115706880).

67214070 is an abundant number, since it is smaller than the sum of its proper divisors (164199690).

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

67214070 is a wasteful number, since it uses less digits than its factorization.

67214070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 67214070 is about 8198.4187499786. The cubic root of 67214070 is about 406.5869151442.

The spelling of 67214070 in words is "sixty-seven million, two hundred fourteen thousand, seventy".