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7066351013 = 21317331489
BaseRepresentation
bin1101001010010111…
…11111010110100101
3200020110120211021012
412211023333112211
5103432441213023
63125104232005
7340052664311
oct64513772645
920213524235
107066351013
112aa6853117
12145260b605
13887c978b7
144b06acb41
152b5573978
hex1a52ff5a5

7066351013 has 4 divisors (see below), whose sum is σ = 7066703820. Its totient is φ = 7065998208.

The previous prime is 7066350961. The next prime is 7066351031. The reversal of 7066351013 is 3101536607.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6836313124 + 230037889 = 82682^2 + 15167^2 .

It is a cyclic number.

It is not a de Polignac number, because 7066351013 - 228 = 6797915557 is a prime.

It is a super-4 number, since 4×70663510134 (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7066351063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144428 + ... + 187061.

It is an arithmetic number, because the mean of its divisors is an integer number (1766675955).

Almost surely, 27066351013 is an apocalyptic number.

It is an amenable number.

7066351013 is a deficient number, since it is larger than the sum of its proper divisors (352807).

7066351013 is a wasteful number, since it uses less digits than its factorization.

7066351013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352806.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 7066351013 is about 84061.5905928504. The cubic root of 7066351013 is about 1918.9562300050.

The spelling of 7066351013 in words is "seven billion, sixty-six million, three hundred fifty-one thousand, thirteen".

Divisors: 1 21317 331489 7066351013