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15319250390 = 257121576409
BaseRepresentation
bin11100100010001100…
…10011010111010110
31110112121212112220002
432101012103113112
5222333212003030
611012040411302
71051424323403
oct162106232726
943477775802
1015319250390
116551354614
122b76476b32
1315a1a27002
14a547a92aa
155e9d77245
hex3911935d6

15319250390 has 16 divisors (see below), whose sum is σ = 27963027360. Its totient is φ = 6041394240.

The previous prime is 15319250369. The next prime is 15319250393. The reversal of 15319250390 is 9305291351.

It is a happy number.

15319250390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15319250393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10787495 + ... + 10788914.

It is an arithmetic number, because the mean of its divisors is an integer number (1747689210).

Almost surely, 215319250390 is an apocalyptic number.

15319250390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15319250390 is a deficient number, since it is larger than the sum of its proper divisors (12643776970).

15319250390 is a wasteful number, since it uses less digits than its factorization.

15319250390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21576487.

The product of its (nonzero) digits is 36450, while the sum is 38.

The spelling of 15319250390 in words is "fifteen billion, three hundred nineteen million, two hundred fifty thousand, three hundred ninety".

Divisors: 1 2 5 10 71 142 355 710 21576409 43152818 107882045 215764090 1531925039 3063850078 7659625195 15319250390