Search a number
-
+
105430453 = 432451871
BaseRepresentation
bin1100100100010…
…11110110110101
321100101102101121
412102023312311
5203442233303
614243423541
72420100262
oct622136665
9240342347
10105430453
1154570507
122b384bb1
1318ac54ab
1410006269
1593c89bd
hex648bdb5

105430453 has 4 divisors (see below), whose sum is σ = 107882368. Its totient is φ = 102978540.

The previous prime is 105430439. The next prime is 105430471. The reversal of 105430453 is 354034501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105430453 - 29 = 105429941 is a prime.

It is a super-2 number, since 2×1054304532 = 22231160839570418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105430153) 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, 1225893 + ... + 1225978.

It is an arithmetic number, because the mean of its divisors is an integer number (26970592).

Almost surely, 2105430453 is an apocalyptic number.

It is an amenable number.

105430453 is a deficient number, since it is larger than the sum of its proper divisors (2451915).

105430453 is an equidigital number, since it uses as much as digits as its factorization.

105430453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451914.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 105430453 is about 10267.9332389727. The cubic root of 105430453 is about 472.4132001843.

Adding to 105430453 its reverse (354034501), we get a palindrome (459464954).

The spelling of 105430453 in words is "one hundred five million, four hundred thirty thousand, four hundred fifty-three".

Divisors: 1 43 2451871 105430453