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103825145 = 5375310589
BaseRepresentation
bin1100011000000…
…11111011111001
321020100212022202
412030003323321
5203034401040
614145155545
72400333134
oct614037371
9236325282
10103825145
1153674406
122a92bbb5
13186828c8
14db0921b
1591ad015
hex6303ef9

103825145 has 16 divisors (see below), whose sum is σ = 130384080. Its totient is φ = 79282944.

The previous prime is 103825081. The next prime is 103825147. The reversal of 103825145 is 541528301.

It can be written as a sum of positive squares in 8 ways, for example, as 436921 + 103388224 = 661^2 + 10168^2 .

It is a cyclic number.

It is not a de Polignac number, because 103825145 - 26 = 103825081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103825147) 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, 4511 + ... + 15099.

It is an arithmetic number, because the mean of its divisors is an integer number (8149005).

Almost surely, 2103825145 is an apocalyptic number.

It is an amenable number.

103825145 is a deficient number, since it is larger than the sum of its proper divisors (26558935).

103825145 is a wasteful number, since it uses less digits than its factorization.

103825145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10684.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 103825145 is about 10189.4624490206. The cubic root of 103825145 is about 470.0032367364.

The spelling of 103825145 in words is "one hundred three million, eight hundred twenty-five thousand, one hundred forty-five".

Divisors: 1 5 37 53 185 265 1961 9805 10589 52945 391793 561217 1958965 2806085 20765029 103825145