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70747240507 = 84659835673
BaseRepresentation
bin100000111100011011…
…1010011100000111011
320202121111102012010221
41001320313103200323
52124342243144012
652300102520511
75053116423256
oct1017067234073
9222544365127
1070747240507
1128004a77a09
1211865136137
1368961b70b8
1435d1d6a09d
151c91015507
hex1078dd383b

70747240507 has 4 divisors (see below), whose sum is σ = 70748160840. Its totient is φ = 70746320176.

The previous prime is 70747240483. The next prime is 70747240523. The reversal of 70747240507 is 70504274707.

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

It is a cyclic number.

It is not a de Polignac number, because 70747240507 - 219 = 70746716219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70747240537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333178 + ... + 502495.

It is an arithmetic number, because the mean of its divisors is an integer number (17687040210).

Almost surely, 270747240507 is an apocalyptic number.

70747240507 is a deficient number, since it is larger than the sum of its proper divisors (920333).

70747240507 is an equidigital number, since it uses as much as digits as its factorization.

70747240507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920332.

The product of its (nonzero) digits is 384160, while the sum is 43.

The spelling of 70747240507 in words is "seventy billion, seven hundred forty-seven million, two hundred forty thousand, five hundred seven".

Divisors: 1 84659 835673 70747240507