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104455871761 = 281371729081
BaseRepresentation
bin110000101001000001…
…1100001110100010001
3100222121201011002012011
41201102003201310101
53202411200344021
6115553015502521
710355341155163
oct1412203416421
9328551132164
10104455871761
114033268654a
12182b2087a41
139b08a05657
1450acb60933
152ab550cde1
hex18520e1d11

104455871761 has 4 divisors (see below), whose sum is σ = 104827601124. Its totient is φ = 104084142400.

The previous prime is 104455871713. The next prime is 104455871851. The reversal of 104455871761 is 167178554401.

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

It can be written as a sum of positive squares in 2 ways, for example, as 56855541136 + 47600330625 = 238444^2 + 218175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-104455871761 is a prime.

It is a super-2 number, since 2×1044558717612 (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104455871701) 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, 185864260 + ... + 185864821.

It is an arithmetic number, because the mean of its divisors is an integer number (26206900281).

Almost surely, 2104455871761 is an apocalyptic number.

It is an amenable number.

104455871761 is a deficient number, since it is larger than the sum of its proper divisors (371729363).

104455871761 is an equidigital number, since it uses as much as digits as its factorization.

104455871761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371729362.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 104455871761 in words is "one hundred four billion, four hundred fifty-five million, eight hundred seventy-one thousand, seven hundred sixty-one".

Divisors: 1 281 371729081 104455871761