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15434130208 = 257316183439
BaseRepresentation
bin11100101111111001…
…00010001100100000
31110211122001001101011
432113330202030200
5223102114131313
611031302550304
71054320641110
oct162774421440
943748031334
1015434130208
116600189512
122ba8a38394
1315bc77a533
14a65b51040
15604eba93d
hex397f22320

15434130208 has 192 divisors, whose sum is σ = 36957634560. Its totient is φ = 6206284800.

The previous prime is 15434130191. The next prime is 15434130209. The reversal of 15434130208 is 80203143451.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 15434130208.

It is not an unprimeable number, because it can be changed into a prime (15434130209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35157253 + ... + 35157691.

It is an arithmetic number, because the mean of its divisors is an integer number (192487680).

Almost surely, 215434130208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15434130208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18478817280).

15434130208 is an abundant number, since it is smaller than the sum of its proper divisors (21523504352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15434130208 is a wasteful number, since it uses less digits than its factorization.

15434130208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 15434130208 its reverse (80203143451), we get a palindrome (95637273659).

The spelling of 15434130208 in words is "fifteen billion, four hundred thirty-four million, one hundred thirty thousand, two hundred eight".