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147842168785 = 529568433757
BaseRepresentation
bin1000100110110000010…
…1000111011111010001
3112010121101010022220221
42021230011013133101
54410240043400120
6151530122433041
713452444462103
oct2115405073721
9463541108827
10147842168785
1157777060673
12247a0062781
1310c314c385c
147226d6d573
153ca44420aa
hex226c1477d1

147842168785 has 4 divisors (see below), whose sum is σ = 177410602548. Its totient is φ = 118273735024.

The previous prime is 147842168783. The next prime is 147842168807. The reversal of 147842168785 is 587861248741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 587861248741 = 1345220096057.

It can be written as a sum of positive squares in 2 ways, for example, as 116764357264 + 31077811521 = 341708^2 + 176289^2 .

It is a cyclic number.

It is not a de Polignac number, because 147842168785 - 21 = 147842168783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147842168783) 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, 14784216874 + ... + 14784216883.

It is an arithmetic number, because the mean of its divisors is an integer number (44352650637).

Almost surely, 2147842168785 is an apocalyptic number.

It is an amenable number.

147842168785 is a deficient number, since it is larger than the sum of its proper divisors (29568433763).

147842168785 is an equidigital number, since it uses as much as digits as its factorization.

147842168785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29568433762.

The product of its digits is 24084480, while the sum is 61.

The spelling of 147842168785 in words is "one hundred forty-seven billion, eight hundred forty-two million, one hundred sixty-eight thousand, seven hundred eighty-five".

Divisors: 1 5 29568433757 147842168785