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105092945 = 5316071117
BaseRepresentation
bin1100100001110…
…01011101010001
321022202021102022
412100321131101
5203400433240
614232301225
72414163266
oct620713521
9238667368
10105092945
115435a981
122b241815
1318a07999
14dd5926d
15935d9b5
hex6439751

105092945 has 16 divisors (see below), whose sum is σ = 130510848. Its totient is φ = 81155520.

The previous prime is 105092941. The next prime is 105092951. The reversal of 105092945 is 549290501.

It is not a de Polignac number, because 105092945 - 22 = 105092941 is a prime.

It is a super-2 number, since 2×1050929452 = 22089054177546050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105092941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93527 + ... + 94643.

It is an arithmetic number, because the mean of its divisors is an integer number (8156928).

Almost surely, 2105092945 is an apocalyptic number.

It is an amenable number.

105092945 is a deficient number, since it is larger than the sum of its proper divisors (25417903).

105092945 is a wasteful number, since it uses less digits than its factorization.

105092945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 105092945 is about 10251.4850143772. The cubic root of 105092945 is about 471.9085589045.

The spelling of 105092945 in words is "one hundred five million, ninety-two thousand, nine hundred forty-five".

Divisors: 1 5 31 155 607 1117 3035 5585 18817 34627 94085 173135 678019 3390095 21018589 105092945