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105522061 = 641164621
BaseRepresentation
bin1100100101000…
…10001110001101
321100120002001111
412102202032031
5204003201221
614245412021
72420631331
oct622421615
9240502044
10105522061
1154623317
122b40a011
1318b280b8
141002b7c1
1593e5be1
hex64a238d

105522061 has 4 divisors (see below), whose sum is σ = 105687324. Its totient is φ = 105356800.

The previous prime is 105522023. The next prime is 105522083. The reversal of 105522061 is 160225501.

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 83722500 + 21799561 = 9150^2 + 4669^2 .

It is a cyclic number.

It is not a de Polignac number, because 105522061 - 225 = 71967629 is a prime.

It is a super-2 number, since 2×1055220612 = 22269810715375442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105525061) 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, 81670 + ... + 82951.

It is an arithmetic number, because the mean of its divisors is an integer number (26421831).

Almost surely, 2105522061 is an apocalyptic number.

It is an amenable number.

105522061 is a deficient number, since it is larger than the sum of its proper divisors (165263).

105522061 is an equidigital number, since it uses as much as digits as its factorization.

105522061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165262.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 105522061 is about 10272.3931486290. The cubic root of 105522061 is about 472.5499864066.

Adding to 105522061 its reverse (160225501), we get a palindrome (265747562).

The spelling of 105522061 in words is "one hundred five million, five hundred twenty-two thousand, sixty-one".

Divisors: 1 641 164621 105522061