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105005055401 = 211497654291
BaseRepresentation
bin110000111001011001…
…0011111110110101001
3101001000222112111111222
41201302302133312221
53210022243233101
6120123314431425
710405060146521
oct1416262376651
9331028474458
10105005055401
1140594686324
1218425b92575
139b9571b39c
145121a7a681
152ae883e01b
hex1872c9fda9

105005055401 has 4 divisors (see below), whose sum is σ = 105502709904. Its totient is φ = 104507400900.

The previous prime is 105005055307. The next prime is 105005055409. The reversal of 105005055401 is 104550500501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105005055401 - 234 = 87825186217 is a prime.

It is a super-2 number, since 2×1050050554012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105005055409) 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, 248826935 + ... + 248827356.

It is an arithmetic number, because the mean of its divisors is an integer number (26375677476).

Almost surely, 2105005055401 is an apocalyptic number.

It is an amenable number.

105005055401 is a deficient number, since it is larger than the sum of its proper divisors (497654503).

105005055401 is an equidigital number, since it uses as much as digits as its factorization.

105005055401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497654502.

The product of its (nonzero) digits is 2500, while the sum is 26.

Adding to 105005055401 its reverse (104550500501), we get a palindrome (209555555902).

The spelling of 105005055401 in words is "one hundred five billion, five million, fifty-five thousand, four hundred one".

Divisors: 1 211 497654291 105005055401