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15230330194 = 2193116777419
BaseRepresentation
bin11100010111100110…
…00110010101010010
31110022102112221022111
432023303012111102
5222142431031234
610555142455534
71046264446012
oct161363062522
943272487274
1015230330194
116506140552
122b507345aa
131589492701
14a46a5dc42
155e2160664
hex38bcc6552

15230330194 has 32 divisors (see below), whose sum is σ = 24972595200. Its totient is φ = 6939749520.

The previous prime is 15230330191. The next prime is 15230330201. The reversal of 15230330194 is 49103303251.

15230330194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (15230330191) 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 15 ways as a sum of consecutive naturals, for example, 158017 + ... + 235435.

It is an arithmetic number, because the mean of its divisors is an integer number (780393600).

Almost surely, 215230330194 is an apocalyptic number.

15230330194 is a deficient number, since it is larger than the sum of its proper divisors (9742265006).

15230330194 is a wasteful number, since it uses less digits than its factorization.

15230330194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77638.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 15230330194 in words is "fifteen billion, two hundred thirty million, three hundred thirty thousand, one hundred ninety-four".

Divisors: 1 2 19 31 38 62 167 334 589 1178 3173 5177 6346 10354 77419 98363 154838 196726 1470961 2399989 2941922 4799978 12928973 25857946 45599791 91199582 245650487 400798163 491300974 801596326 7615165097 15230330194