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105475860721 = 7111369816373
BaseRepresentation
bin110001000111011011…
…0011110100011110001
3101002020210102220000001
41202032312132203301
53212003310020341
6120242133430001
710422535011010
oct1421666364361
9332223386001
10105475860721
1140806412330
121853779b301
139c3c120c0a
1451683d2a77
152b24d3bd31
hex188ed9e8f1

105475860721 has 8 divisors (see below), whose sum is σ = 131502371904. Its totient is φ = 82188982320.

The previous prime is 105475860697. The next prime is 105475860739. The reversal of 105475860721 is 127068574501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105475860721 - 27 = 105475860593 is a prime.

It is a super-2 number, since 2×1054758607212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105475864721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684908110 + ... + 684908263.

It is an arithmetic number, because the mean of its divisors is an integer number (16437796488).

Almost surely, 2105475860721 is an apocalyptic number.

105475860721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105475860721 is a deficient number, since it is larger than the sum of its proper divisors (26026511183).

105475860721 is a wasteful number, since it uses less digits than its factorization.

105475860721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369816391.

The product of its (nonzero) digits is 470400, while the sum is 46.

The spelling of 105475860721 in words is "one hundred five billion, four hundred seventy-five million, eight hundred sixty thousand, seven hundred twenty-one".

Divisors: 1 7 11 77 1369816373 9588714611 15067980103 105475860721