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15530103125 = 5523216071
BaseRepresentation
bin11100111011010101…
…01001000101010101
31111002022121222110122
432131222221011111
5223301201300000
611045012001325
71056564461405
oct163552510525
944068558418
1015530103125
11664a37a379
123015000245
131606611044
14a747b4805
1560d627085
hex39daa9155

15530103125 has 24 divisors (see below), whose sum is σ = 20255453568. Its totient is φ = 11883850000.

The previous prime is 15530103103. The next prime is 15530103163. The reversal of 15530103125 is 52130103551.

It is a happy number.

It is not a de Polignac number, because 15530103125 - 210 = 15530102101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15530103094 and 15530103103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36161 + ... + 179910.

It is an arithmetic number, because the mean of its divisors is an integer number (843977232).

Almost surely, 215530103125 is an apocalyptic number.

It is an amenable number.

15530103125 is a deficient number, since it is larger than the sum of its proper divisors (4725350443).

15530103125 is an frugal number, since it uses more digits than its factorization.

15530103125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216119 (or 216099 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

Adding to 15530103125 its reverse (52130103551), we get a palindrome (67660206676).

The spelling of 15530103125 in words is "fifteen billion, five hundred thirty million, one hundred three thousand, one hundred twenty-five".

Divisors: 1 5 23 25 115 125 575 625 2875 3125 14375 71875 216071 1080355 4969633 5401775 24848165 27008875 124240825 135044375 621204125 675221875 3106020625 15530103125