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14443472761 = 1201812
BaseRepresentation
bin11010111001110010…
…11110011101111001
31101021120221102211121
431130321132131321
5214040012112021
610345113425241
71020631331014
oct153471363571
941246842747
1014443472761
116141a66953
12297110b221
1314924618b3
149b035637b
15598032741
hex35ce5e779

14443472761 has 3 divisors (see below), whose sum is σ = 14443592943. Its totient is φ = 14443352580.

The previous prime is 14443472749. The next prime is 14443472843. The reversal of 14443472761 is 16727434441.

The square root of 14443472761 is 120181.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 13893101161 + 550371600 = 117869^2 + 23460^2 .

It is not a de Polignac number, because 14443472761 - 213 = 14443464569 is a prime.

It is a super-2 number, since 2×144434727612 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14443472741) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 60091 + ... + 180271.

It is an arithmetic number, because the mean of its divisors is an integer number (4814530981).

Almost surely, 214443472761 is an apocalyptic number.

14443472761 is the 120181-st square number.

14443472761 is the 60091-st centered octagonal number.

It is an amenable number.

14443472761 is a deficient number, since it is larger than the sum of its proper divisors (120182).

14443472761 is an frugal number, since it uses more digits than its factorization.

14443472761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240362 (or 120181 counting only the distinct ones).

The product of its digits is 451584, while the sum is 43.

It can be divided in two parts, 14443 and 472761, that added together give a square (487204 = 6982).

The spelling of 14443472761 in words is "fourteen billion, four hundred forty-three million, four hundred seventy-two thousand, seven hundred sixty-one".

Divisors: 1 120181 14443472761