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104771110121 = 144772405743
BaseRepresentation
bin110000110010011011…
…0000100010011101001
3101000102200022211220222
41201210312010103221
53204032401010441
6120044200255425
710366216512356
oct1414466042351
9330380284828
10104771110121
1140484618817
121837b771575
139b5910a422
1450dc97d62d
152ad302bd4b
hex1864d844e9

104771110121 has 4 divisors (see below), whose sum is σ = 104843517312. Its totient is φ = 104698702932.

The previous prime is 104771110097. The next prime is 104771110141. The reversal of 104771110121 is 121011177401.

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 a de Polignac number, because none of the positive numbers 2k-104771110121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104771110141) 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, 36201425 + ... + 36204318.

It is an arithmetic number, because the mean of its divisors is an integer number (26210879328).

Almost surely, 2104771110121 is an apocalyptic number.

It is an amenable number.

104771110121 is a deficient number, since it is larger than the sum of its proper divisors (72407191).

104771110121 is an equidigital number, since it uses as much as digits as its factorization.

104771110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72407190.

The product of its (nonzero) digits is 392, while the sum is 26.

Adding to 104771110121 its reverse (121011177401), we get a palindrome (225782287522).

The spelling of 104771110121 in words is "one hundred four billion, seven hundred seventy-one million, one hundred ten thousand, one hundred twenty-one".

Divisors: 1 1447 72405743 104771110121