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83710757245 = 516742151449
BaseRepresentation
bin100110111110110001…
…1001100100101111101
322000001221120001222111
41031331203030211331
52332414423212440
6102242312014021
76022300460563
oct1157543144575
9260057501874
1083710757245
11325575a3a05
1214282691311
137b80b53b6b
1440a1919a33
15229e15c4ea
hex137d8cc97d

83710757245 has 4 divisors (see below), whose sum is σ = 100452908700. Its totient is φ = 66968605792.

The previous prime is 83710757239. The next prime is 83710757261. The reversal of 83710757245 is 54275701738.

It is a happy number.

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 36540998649 + 47169758596 = 191157^2 + 217186^2 .

It is a cyclic number.

It is not a de Polignac number, because 83710757245 - 23 = 83710757237 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8371075720 + ... + 8371075729.

It is an arithmetic number, because the mean of its divisors is an integer number (25113227175).

Almost surely, 283710757245 is an apocalyptic number.

It is an amenable number.

83710757245 is a deficient number, since it is larger than the sum of its proper divisors (16742151455).

83710757245 is a wasteful number, since it uses less digits than its factorization.

83710757245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16742151454.

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 83710757245 in words is "eighty-three billion, seven hundred ten million, seven hundred fifty-seven thousand, two hundred forty-five".

Divisors: 1 5 16742151449 83710757245