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103122125 = 53824977
BaseRepresentation
bin1100010010110…
…00010011001101
321012001010221222
412021120103031
5202344402000
614122133125
72361344411
oct611302315
9235033858
10103122125
11532341a7
122a6511a5
1318497912
14d9a4d41
1590bea85
hex62584cd

103122125 has 8 divisors (see below), whose sum is σ = 128696568. Its totient is φ = 82497600.

The previous prime is 103122121. The next prime is 103122143. The reversal of 103122125 is 521221301.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18003049 + 85119076 = 4243^2 + 9226^2 .

It is not a de Polignac number, because 103122125 - 22 = 103122121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103122121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412364 + ... + 412613.

It is an arithmetic number, because the mean of its divisors is an integer number (16087071).

Almost surely, 2103122125 is an apocalyptic number.

It is an amenable number.

103122125 is a deficient number, since it is larger than the sum of its proper divisors (25574443).

103122125 is an frugal number, since it uses more digits than its factorization.

103122125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824992 (or 824982 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 103122125 is about 10154.9064495937. The cubic root of 103122125 is about 468.9400059344.

Adding to 103122125 its reverse (521221301), we get a palindrome (624343426).

The spelling of 103122125 in words is "one hundred three million, one hundred twenty-two thousand, one hundred twenty-five".

Divisors: 1 5 25 125 824977 4124885 20624425 103122125