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100230013123 = 172358171801
BaseRepresentation
bin101110101011000101…
…1001010000011000011
3100120201012110012221021
41131112023022003003
53120232340404443
6114013421010311
710145536024462
oct1352613120303
9316635405837
10100230013123
1139564258399
12175129b3997
1395b4374996
144bcb8169d9
1529195219ed
hex17562ca0c3

100230013123 has 4 divisors (see below), whose sum is σ = 100288186648. Its totient is φ = 100171839600.

The previous prime is 100230013049. The next prime is 100230013151. The reversal of 100230013123 is 321310032001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-100230013123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100230013097 and 100230013106.

It is not an unprimeable number, because it can be changed into a prime (100230013153) 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, 29084178 + ... + 29087623.

It is an arithmetic number, because the mean of its divisors is an integer number (25072046662).

Almost surely, 2100230013123 is an apocalyptic number.

100230013123 is a deficient number, since it is larger than the sum of its proper divisors (58173525).

100230013123 is an equidigital number, since it uses as much as digits as its factorization.

100230013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58173524.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 100230013123 its reverse (321310032001), we get a palindrome (421540045124).

The spelling of 100230013123 in words is "one hundred billion, two hundred thirty million, thirteen thousand, one hundred twenty-three".

Divisors: 1 1723 58171801 100230013123