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103204145 = 5113315669
BaseRepresentation
bin1100010011011…
…00010100110001
321012012022110202
412021230110301
5202410013040
614124004545
72362135502
oct611542461
9235168422
10103204145
115328a890
122a690755
13184c6055
14d9c6ba9
1590d9015
hex626c531

103204145 has 16 divisors (see below), whose sum is σ = 135535680. Its totient is φ = 74817600.

The previous prime is 103204111. The next prime is 103204223. The reversal of 103204145 is 541402301.

It is not a de Polignac number, because 103204145 - 212 = 103200049 is a prime.

It is a Curzon 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, 15371 + ... + 21039.

It is an arithmetic number, because the mean of its divisors is an integer number (8470980).

Almost surely, 2103204145 is an apocalyptic number.

It is an amenable number.

103204145 is a deficient number, since it is larger than the sum of its proper divisors (32331535).

103204145 is a wasteful number, since it uses less digits than its factorization.

103204145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016.

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

The square root of 103204145 is about 10158.9440888313. The cubic root of 103204145 is about 469.0642995540.

Adding to 103204145 its reverse (541402301), we get a palindrome (644606446).

The spelling of 103204145 in words is "one hundred three million, two hundred four thousand, one hundred forty-five".

Divisors: 1 5 11 55 331 1655 3641 5669 18205 28345 62359 311795 1876439 9382195 20640829 103204145