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105005672231 = 992511057981
BaseRepresentation
bin110000111001011010…
…0110110011100100111
3101001001000200211122112
41201302310312130213
53210022423002411
6120123335551235
710405065326045
oct1416264663447
9331030624575
10105005672231
1140594a677a9
121842622b51b
139b958a6085
145121b9b395
152ae8911b8b
hex1872d36727

105005672231 has 4 divisors (see below), whose sum is σ = 105006829464. Its totient is φ = 105004515000.

The previous prime is 105005672201. The next prime is 105005672273. The reversal of 105005672231 is 132276500501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132276500501 = 196961921079.

It is a cyclic number.

It is not a de Polignac number, because 105005672231 - 210 = 105005671207 is a prime.

It is a super-2 number, since 2×1050056722312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105005672201) 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, 429740 + ... + 628241.

It is an arithmetic number, because the mean of its divisors is an integer number (26251707366).

Almost surely, 2105005672231 is an apocalyptic number.

105005672231 is a deficient number, since it is larger than the sum of its proper divisors (1157233).

105005672231 is an equidigital number, since it uses as much as digits as its factorization.

105005672231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157232.

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 105005672231 in words is "one hundred five billion, five million, six hundred seventy-two thousand, two hundred thirty-one".

Divisors: 1 99251 1057981 105005672231