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15530103131 = 192777294337
BaseRepresentation
bin11100111011010101…
…01001000101011011
31111002022121222110212
432131222221011123
5223301201300011
611045012001335
71056564461414
oct163552510533
944068558425
1015530103131
11664a37a384
12301500024b
13160661104a
14a747b480b
1560d62708b
hex39daa915b

15530103131 has 8 divisors (see below), whose sum is σ = 16353419280. Its totient is φ = 14707381248.

The previous prime is 15530103103. The next prime is 15530103163. The reversal of 15530103131 is 13130103551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15530103131 - 218 = 15529840987 is a prime.

It is a super-2 number, since 2×155301031312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15530103097 and 15530103106.

It is not an unprimeable number, because it can be changed into a prime (15530103101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94406 + ... + 199931.

It is an arithmetic number, because the mean of its divisors is an integer number (2044177410).

Almost surely, 215530103131 is an apocalyptic number.

15530103131 is a deficient number, since it is larger than the sum of its proper divisors (823316149).

15530103131 is a wasteful number, since it uses less digits than its factorization.

15530103131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297133.

The product of its (nonzero) digits is 675, while the sum is 23.

Adding to 15530103131 its reverse (13130103551), we get a palindrome (28660206682).

The spelling of 15530103131 in words is "fifteen billion, five hundred thirty million, one hundred three thousand, one hundred thirty-one".

Divisors: 1 19 2777 52763 294337 5592403 817373849 15530103131