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15204142312 = 2312714964707
BaseRepresentation
bin11100010100011110…
…01100110011101000
31110020121021110021221
432022033030303220
5222114230023222
610552405311424
71045526035342
oct161217146350
943217243257
1015204142312
1164a2384177
122b43a05574
131583c23918
14a433a4292
155debdb0c7
hex38a3ccce8

15204142312 has 16 divisors (see below), whose sum is σ = 28732239360. Its totient is φ = 7542211824.

The previous prime is 15204142273. The next prime is 15204142319. The reversal of 15204142312 is 21324140251.

15204142312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15204142319) 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 3 ways as a sum of consecutive naturals, for example, 7481338 + ... + 7483369.

It is an arithmetic number, because the mean of its divisors is an integer number (1795764960).

Almost surely, 215204142312 is an apocalyptic number.

It is an amenable number.

15204142312 is a deficient number, since it is larger than the sum of its proper divisors (13528097048).

15204142312 is a wasteful number, since it uses less digits than its factorization.

15204142312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14964840 (or 14964836 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 15204142312 its reverse (21324140251), we get a palindrome (36528282563).

The spelling of 15204142312 in words is "fifteen billion, two hundred four million, one hundred forty-two thousand, three hundred twelve".

Divisors: 1 2 4 8 127 254 508 1016 14964707 29929414 59858828 119717656 1900517789 3801035578 7602071156 15204142312