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103118425 = 524124737
BaseRepresentation
bin1100010010101…
…11011001011001
321012000221212221
412021113121121
5202344242200
614122104041
72361330544
oct611273131
9235027787
10103118425
1153231443
122a64b021
1318496027
14d9a385b
1590bd91a
hex6257659

103118425 has 6 divisors (see below), whose sum is σ = 127866878. Its totient is φ = 82494720.

The previous prime is 103118419. The next prime is 103118437. The reversal of 103118425 is 524811301.

It can be written as a sum of positive squares in 3 ways, for example, as 156816 + 102961609 = 396^2 + 10147^2 .

It is not a de Polignac number, because 103118425 - 213 = 103110233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 4124737 = 103118425 / (1 + 0 + 3 + 1 + 1 + 8 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103118425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2062344 + ... + 2062393.

Almost surely, 2103118425 is an apocalyptic number.

It is an amenable number.

103118425 is a deficient number, since it is larger than the sum of its proper divisors (24748453).

103118425 is an equidigital number, since it uses as much as digits as its factorization.

103118425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124747 (or 4124742 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 103118425 is about 10154.7242700134. The cubic root of 103118425 is about 468.9343973780.

Adding to 103118425 its reverse (524811301), we get a palindrome (627929726).

The spelling of 103118425 in words is "one hundred three million, one hundred eighteen thousand, four hundred twenty-five".

Divisors: 1 5 25 4124737 20623685 103118425