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71748001110001 = 87049824225449
BaseRepresentation
bin10000010100000100100010…
…000111101001011111110001
3100102001001010120002122001111
4100110010202013221133301
533401004401241010001
6412332324321433321
721053423231641516
oct2024044207513761
9312031116078044
1071748001110001
112095217a184057
1280692b049b841
133105a66033138
1413a089c25730d
158464e4465851
hex4141221e97f1

71748001110001 has 4 divisors (see below), whose sum is σ = 71748825422500. Its totient is φ = 71747176797504.

The previous prime is 71748001109969. The next prime is 71748001110131. The reversal of 71748001110001 is 10001110084717.

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 47423179829601 + 24324821280400 = 6886449^2 + 4932020^2 .

It is a cyclic number.

It is not a de Polignac number, because 71748001110001 - 25 = 71748001109969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71748001110301) 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, 412025676 + ... + 412199773.

It is an arithmetic number, because the mean of its divisors is an integer number (17937206355625).

Almost surely, 271748001110001 is an apocalyptic number.

It is an amenable number.

71748001110001 is a deficient number, since it is larger than the sum of its proper divisors (824312499).

71748001110001 is an equidigital number, since it uses as much as digits as its factorization.

71748001110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824312498.

The product of its (nonzero) digits is 1568, while the sum is 31.

Adding to 71748001110001 its reverse (10001110084717), we get a palindrome (81749111194718).

The spelling of 71748001110001 in words is "seventy-one trillion, seven hundred forty-eight billion, one million, one hundred ten thousand, one".

Divisors: 1 87049 824225449 71748001110001