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105554641 = 531991597
BaseRepresentation
bin1100100101010…
…10001011010001
321100121201202011
412102222023101
5204010222031
614250222521
72421125323
oct622521321
9240551664
10105554641
1154645845
122b424a41
1318b39b8a
1410039613
1594006b1
hex64aa2d1

105554641 has 4 divisors (see below), whose sum is σ = 107546292. Its totient is φ = 103562992.

The previous prime is 105554629. The next prime is 105554651. The reversal of 105554641 is 146455501.

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 96530625 + 9024016 = 9825^2 + 3004^2 .

It is a cyclic number.

It is not a de Polignac number, because 105554641 - 225 = 72000209 is a prime.

It is a super-2 number, since 2×1055546412 = 22283564473277762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105554651) 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, 995746 + ... + 995851.

It is an arithmetic number, because the mean of its divisors is an integer number (26886573).

Almost surely, 2105554641 is an apocalyptic number.

It is an amenable number.

105554641 is a deficient number, since it is larger than the sum of its proper divisors (1991651).

105554641 is an equidigital number, since it uses as much as digits as its factorization.

105554641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991650.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 105554641 is about 10273.9788300346. The cubic root of 105554641 is about 472.5986147667.

It can be divided in two parts, 1055 and 54641, that added together give a square (55696 = 2362).

The spelling of 105554641 in words is "one hundred five million, five hundred fifty-four thousand, six hundred forty-one".

Divisors: 1 53 1991597 105554641