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105680441 = 1016011741
BaseRepresentation
bin1100100110010…
…00111000111001
321100212010022102
412103020320321
5204023233231
614253033145
72422161146
oct623107071
9240763272
10105680441
1154721309
122b4857b5
1318b82209
141006d3cd
159427acb
hex64c8e39

105680441 has 8 divisors (see below), whose sum is σ = 106965768. Its totient is φ = 104400000.

The previous prime is 105680429. The next prime is 105680459. The reversal of 105680441 is 144086501.

It can be written as a sum of positive squares in 4 ways, for example, as 24049216 + 81631225 = 4904^2 + 9035^2 .

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 105680441 - 210 = 105679417 is a prime.

It is a super-2 number, since 2×1056804412 = 22336711219908962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105680941) 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 7 ways as a sum of consecutive naturals, for example, 59831 + ... + 61571.

It is an arithmetic number, because the mean of its divisors is an integer number (13370721).

Almost surely, 2105680441 is an apocalyptic number.

It is an amenable number.

105680441 is a deficient number, since it is larger than the sum of its proper divisors (1285327).

105680441 is a wasteful number, since it uses less digits than its factorization.

105680441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 105680441 is about 10280.0992699487. The cubic root of 105680441 is about 472.7862878750.

The spelling of 105680441 in words is "one hundred five million, six hundred eighty thousand, four hundred forty-one".

Divisors: 1 101 601 1741 60701 175841 1046341 105680441