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12158182950 = 23522331791439
BaseRepresentation
bin10110101001010111…
…10010011000100110
31011101022202200120020
423110223302120212
5144344443323300
65330240020010
7610201564344
oct132453623046
934338680506
1012158182950
115179a82891
122433901606
1311b9b6a1c4
14834a36994
154b25b98a0
hex2d4af2626

12158182950 has 192 divisors, whose sum is σ = 32912179200. Its totient is φ = 2961129600.

The previous prime is 12158182903. The next prime is 12158182969. The reversal of 12158182950 is 5928185121.

12158182950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 8448331 + ... + 8449769.

It is an arithmetic number, because the mean of its divisors is an integer number (171417600).

Almost surely, 212158182950 is an apocalyptic number.

12158182950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12158182950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16456089600).

12158182950 is an abundant number, since it is smaller than the sum of its proper divisors (20753996250).

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

12158182950 is a wasteful number, since it uses less digits than its factorization.

12158182950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 42.

The spelling of 12158182950 in words is "twelve billion, one hundred fifty-eight million, one hundred eighty-two thousand, nine hundred fifty".