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103440001011223 = 991104379415753
BaseRepresentation
bin10111100001010000000000…
…100001000000111000010111
3111120020202201112010002100211
4113201100000201000320113
5102024230110224324343
61003555402550550251
730534202440242332
oct2741200041007027
9446222645102324
10103440001011223
112aa60726994008
12b727447068387
13459447262ba96
141b7874665d619
15be5aa254379d
hex5e1400840e17

103440001011223 has 4 divisors (see below), whose sum is σ = 103544380427968. Its totient is φ = 103335621594480.

The previous prime is 103440001011167. The next prime is 103440001011283. The reversal of 103440001011223 is 322110100044301.

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-103440001011223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103440001011194 and 103440001011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103440001011283) 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, 52189706886 + ... + 52189708867.

It is an arithmetic number, because the mean of its divisors is an integer number (25886095106992).

Almost surely, 2103440001011223 is an apocalyptic number.

103440001011223 is a deficient number, since it is larger than the sum of its proper divisors (104379416745).

103440001011223 is an equidigital number, since it uses as much as digits as its factorization.

103440001011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104379416744.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 103440001011223 its reverse (322110100044301), we get a palindrome (425550101055524).

The spelling of 103440001011223 in words is "one hundred three trillion, four hundred forty billion, one million, eleven thousand, two hundred twenty-three".

Divisors: 1 991 104379415753 103440001011223