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101005100051 = 234743035833
BaseRepresentation
bin101111000010001011…
…1111000010000010011
3100122201012220201022112
41132010113320100103
53123324301200201
6114222345455535
710204000120232
oct1360427702023
9318635821275
10101005100051
11399218226a9
12176aa4a15ab
1396a8b140bb
144c62738b19
1529625c70bb
hex17845f8413

101005100051 has 4 divisors (see below), whose sum is σ = 101048138232. Its totient is φ = 100962061872.

The previous prime is 101005100029. The next prime is 101005100071. The reversal of 101005100051 is 150001500101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150001500101 = 178823617653.

It is a cyclic number.

It is not a de Polignac number, because 101005100051 - 214 = 101005083667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101005099999 and 101005100035.

It is not an unprimeable number, because it can be changed into a prime (101005100071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21515570 + ... + 21520263.

It is an arithmetic number, because the mean of its divisors is an integer number (25262034558).

Almost surely, 2101005100051 is an apocalyptic number.

101005100051 is a deficient number, since it is larger than the sum of its proper divisors (43038181).

101005100051 is an equidigital number, since it uses as much as digits as its factorization.

101005100051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43038180.

The product of its (nonzero) digits is 25, while the sum is 14.

Adding to 101005100051 its reverse (150001500101), we get a palindrome (251006600152).

The spelling of 101005100051 in words is "one hundred one billion, five million, one hundred thousand, fifty-one".

Divisors: 1 2347 43035833 101005100051