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102413405 = 5173197601
BaseRepresentation
bin1100001101010…
…11010001011101
321010201010210002
412012223101131
5202204212110
614055024045
72352333233
oct606532135
9233633702
10102413405
115289a786
122a36b025
13182aa163
14d85c953
158eceaa5
hex61ab45d

102413405 has 16 divisors (see below), whose sum is σ = 124440624. Its totient is φ = 80908800.

The previous prime is 102413387. The next prime is 102413459. The reversal of 102413405 is 504314201.

It can be written as a sum of positive squares in 8 ways, for example, as 40271716 + 62141689 = 6346^2 + 7883^2 .

It is not a de Polignac number, because 102413405 - 28 = 102413149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170105 + ... + 170705.

It is an arithmetic number, because the mean of its divisors is an integer number (7777539).

Almost surely, 2102413405 is an apocalyptic number.

It is an amenable number.

102413405 is a deficient number, since it is larger than the sum of its proper divisors (22027219).

102413405 is a wasteful number, since it uses less digits than its factorization.

102413405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102413405 is about 10119.9508398015. The cubic root of 102413405 is about 467.8632520451.

Adding to 102413405 its reverse (504314201), we get a palindrome (606727606).

The spelling of 102413405 in words is "one hundred two million, four hundred thirteen thousand, four hundred five".

Divisors: 1 5 173 197 601 865 985 3005 34081 103973 118397 170405 519865 591985 20482681 102413405