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105565313153 = 166963250637
BaseRepresentation
bin110001001010000101…
…1101101100010000001
3101002111000202112200002
41202110023231202001
53212144210010103
6120255051005345
710425002233166
oct1422413554201
9332430675602
10105565313153
114085195a263
1218561739855
139c54810851
14517623a06d
152b2cb0b488
hex18942ed881

105565313153 has 4 divisors (see below), whose sum is σ = 105628565460. Its totient is φ = 105502060848.

The previous prime is 105565313149. The next prime is 105565313167. The reversal of 105565313153 is 351313565501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351313565501 = 1720665503853.

It can be written as a sum of positive squares in 2 ways, for example, as 68986073104 + 36579240049 = 262652^2 + 191257^2 .

It is a cyclic number.

It is not a de Polignac number, because 105565313153 - 22 = 105565313149 is a prime.

It is a super-2 number, since 2×1055653131532 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105565313653) 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, 31623650 + ... + 31626987.

It is an arithmetic number, because the mean of its divisors is an integer number (26407141365).

Almost surely, 2105565313153 is an apocalyptic number.

It is an amenable number.

105565313153 is a deficient number, since it is larger than the sum of its proper divisors (63252307).

105565313153 is an equidigital number, since it uses as much as digits as its factorization.

105565313153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63252306.

The product of its (nonzero) digits is 101250, while the sum is 38.

Adding to 105565313153 its reverse (351313565501), we get a palindrome (456878878654).

The spelling of 105565313153 in words is "one hundred five billion, five hundred sixty-five million, three hundred thirteen thousand, one hundred fifty-three".

Divisors: 1 1669 63250637 105565313153