Search a number
-
+
106403245345 = 521280649069
BaseRepresentation
bin110001100011000100…
…0001010110100100001
3101011122102110220112201
41203012020022310201
53220403212322340
6120514142453201
710454525443165
oct1430610126441
9334572426481
10106403245345
1141141949101
1218756294201
13a0592b5007
14521563aca5
152b7b47779a
hex18c620ad21

106403245345 has 4 divisors (see below), whose sum is σ = 127683894420. Its totient is φ = 85122596272.

The previous prime is 106403245331. The next prime is 106403245363. The reversal of 106403245345 is 543542304601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543542304601 = 2374722888883.

It can be written as a sum of positive squares in 2 ways, for example, as 47192783121 + 59210462224 = 217239^2 + 243332^2 .

It is a cyclic number.

It is not a de Polignac number, because 106403245345 - 27 = 106403245217 is a prime.

It is a super-2 number, since 2×1064032453452 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10640324530 + ... + 10640324539.

It is an arithmetic number, because the mean of its divisors is an integer number (31920973605).

Almost surely, 2106403245345 is an apocalyptic number.

It is an amenable number.

106403245345 is a deficient number, since it is larger than the sum of its proper divisors (21280649075).

106403245345 is an equidigital number, since it uses as much as digits as its factorization.

106403245345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21280649074.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 106403245345 its reverse (543542304601), we get a palindrome (649945549946).

The spelling of 106403245345 in words is "one hundred six billion, four hundred three million, two hundred forty-five thousand, three hundred forty-five".

Divisors: 1 5 21280649069 106403245345