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105493441 = 102712
BaseRepresentation
bin1100100100110…
…11001111000001
321100111121210111
412102123033001
5204001242231
614245031321
72420452024
oct622331701
9240447714
10105493441
1154603869
122b3b5541
1318b18071
14100211bb
1593dc4b1
hex649b3c1

105493441 has 3 divisors (see below), whose sum is σ = 105503713. Its totient is φ = 105483170.

The previous prime is 105493429. The next prime is 105493447. The reversal of 105493441 is 144394501.

The square root of 105493441 is 10271.

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, and also an emirpimes, since its reverse is a distinct semiprime: 144394501 = 311464291.

It is not a de Polignac number, because 105493441 - 219 = 104969153 is a prime.

It is a super-2 number, since 2×1054934412 = 22257732188040962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105493447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5136 + ... + 15406.

Almost surely, 2105493441 is an apocalyptic number.

105493441 is the 10271-st square number.

105493441 is the 5136-th centered octagonal number.

It is an amenable number.

105493441 is a deficient number, since it is larger than the sum of its proper divisors (10272).

105493441 is an frugal number, since it uses more digits than its factorization.

105493441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20542 (or 10271 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The cubic root of 105493441 is about 472.5072604168.

The spelling of 105493441 in words is "one hundred five million, four hundred ninety-three thousand, four hundred forty-one".

Divisors: 1 10271 105493441