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102110060042 = 251055030021
BaseRepresentation
bin101111100011000111…
…0111101111000001010
3100202120020002111110122
41133012032331320022
53133110133410132
6114524140543242
710243245122024
oct1370616757012
9322506074418
10102110060042
113a339515481
1217958551b22
139823a10593
144d293a9014
1529c95dc912
hex17c63bde0a

102110060042 has 4 divisors (see below), whose sum is σ = 153165090066. Its totient is φ = 51055030020.

The previous prime is 102110059991. The next prime is 102110060047. The reversal of 102110060042 is 240060011201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 77200066801 + 24909993241 = 277849^2 + 157829^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102110060042.

It is not an unprimeable number, because it can be changed into a prime (102110060047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25527515009 + ... + 25527515012.

Almost surely, 2102110060042 is an apocalyptic number.

102110060042 is a deficient number, since it is larger than the sum of its proper divisors (51055030024).

102110060042 is an equidigital number, since it uses as much as digits as its factorization.

102110060042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51055030023.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102110060042 its reverse (240060011201), we get a palindrome (342170071243).

The spelling of 102110060042 in words is "one hundred two billion, one hundred ten million, sixty thousand, forty-two".

Divisors: 1 2 51055030021 102110060042