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105554345 = 5132955997
BaseRepresentation
bin1100100101010…
…10000110101001
321100121201100012
412102222012221
5204010214340
614250221305
72421124421
oct622520651
9240551305
10105554345
11546455a6
122b424835
1318b399c0
1410039481
159400565
hex64aa1a9

105554345 has 16 divisors (see below), whose sum is σ = 141114960. Its totient is φ = 75258624.

The previous prime is 105554341. The next prime is 105554353. The reversal of 105554345 is 543455501.

It can be written as a sum of positive squares in 8 ways, for example, as 9357481 + 96196864 = 3059^2 + 9808^2 .

It is a cyclic number.

It is not a de Polignac number, because 105554345 - 22 = 105554341 is a prime.

It is a super-2 number, since 2×1055543452 = 22283439496758050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105554341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26114 + ... + 29883.

It is an arithmetic number, because the mean of its divisors is an integer number (8819685).

Almost surely, 2105554345 is an apocalyptic number.

It is an amenable number.

105554345 is a deficient number, since it is larger than the sum of its proper divisors (35560615).

105554345 is a wasteful number, since it uses less digits than its factorization.

105554345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56044.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 105554345 is about 10273.9644246999. The cubic root of 105554345 is about 472.5981730071.

The spelling of 105554345 in words is "one hundred five million, five hundred fifty-four thousand, three hundred forty-five".

Divisors: 1 5 13 29 65 145 377 1885 55997 279985 727961 1623913 3639805 8119565 21110869 105554345