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69662197145 = 5371086734651
BaseRepresentation
bin100000011100000110…
…0001100010110011001
320122210212201021110202
41000320030030112121
52120132010302040
652000302351545
75014202622452
oct1007014142631
9218725637422
1069662197145
11275a8548862
121160188b5b5
1367524720c8
14352bc02129
151c2ab36015
hex103830c599

69662197145 has 16 divisors (see below), whose sum is σ = 85864329408. Its totient is φ = 54216993600.

The previous prime is 69662197103. The next prime is 69662197153. The reversal of 69662197145 is 54179126696.

It is not a de Polignac number, because 69662197145 - 218 = 69661935001 is a prime.

It is a super-2 number, since 2×696621971452 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1993070 + ... + 2027720.

It is an arithmetic number, because the mean of its divisors is an integer number (5366520588).

Almost surely, 269662197145 is an apocalyptic number.

It is an amenable number.

69662197145 is a deficient number, since it is larger than the sum of its proper divisors (16202132263).

69662197145 is a wasteful number, since it uses less digits than its factorization.

69662197145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45560.

The product of its digits is 4898880, while the sum is 56.

The spelling of 69662197145 in words is "sixty-nine billion, six hundred sixty-two million, one hundred ninety-seven thousand, one hundred forty-five".

Divisors: 1 5 37 185 10867 34651 54335 173255 402079 1282087 2010395 6410435 376552417 1882762085 13932439429 69662197145