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66367070 = 2573111759
BaseRepresentation
bin1111110100101…
…0111001011110
311121212210111122
43331022321132
5113442221240
610330250542
71434053000
oct375127136
9147783448
1066367070
113450a620
121a286a52
1310999073
148b58370
155c5e4b5
hex3f4ae5e

66367070 has 64 divisors (see below), whose sum is σ = 152064000. Its totient is φ = 20674080.

The previous prime is 66367061. The next prime is 66367129. The reversal of 66367070 is 7076366.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 66367070.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36851 + ... + 38609.

It is an arithmetic number, because the mean of its divisors is an integer number (2376000).

Almost surely, 266367070 is an apocalyptic number.

66367070 is an abundant number, since it is smaller than the sum of its proper divisors (85696930).

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

66367070 is a wasteful number, since it uses less digits than its factorization.

66367070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 1784 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 66367070 is about 8146.5986767485. The cubic root of 66367070 is about 404.8718183997.

The spelling of 66367070 in words is "sixty-six million, three hundred sixty-seven thousand, seventy".

Divisors: 1 2 5 7 10 11 14 22 35 49 55 70 77 98 110 154 245 343 385 490 539 686 770 1078 1715 1759 2695 3430 3518 3773 5390 7546 8795 12313 17590 18865 19349 24626 37730 38698 61565 86191 96745 123130 135443 172382 193490 270886 430955 603337 677215 861910 948101 1206674 1354430 1896202 3016685 4740505 6033370 6636707 9481010 13273414 33183535 66367070