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1200000050 = 25224000001
BaseRepresentation
bin100011110000110…
…1000110000110010
310002122000022121022
41013201220300302
54424200000200
6315024055442
741510555264
oct10741506062
93078008538
101200000050
11566406887
12295a64582
131617c4502
14b552db34
157053a885
hex47868c32

1200000050 has 12 divisors (see below), whose sum is σ = 2232000186. Its totient is φ = 480000000.

The previous prime is 1200000041. The next prime is 1200000059. The reversal of 1200000050 is 500000021.

It is an interprime number because it is at equal distance from previous prime (1200000041) and next prime (1200000059).

It can be written as a sum of positive squares in 3 ways, for example, as 1120843441 + 79156609 = 33479^2 + 8897^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1199999983 and 1200000037.

It is not an unprimeable number, because it can be changed into a prime (1200000059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11999951 + ... + 12000050.

Almost surely, 21200000050 is an apocalyptic number.

1200000050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200000050 is a deficient number, since it is larger than the sum of its proper divisors (1032000136).

1200000050 is a wasteful number, since it uses less digits than its factorization.

1200000050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24000013 (or 24000008 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 8.

The square root of 1200000050 is about 34641.0168730654. The cubic root of 1200000050 is about 1062.6585839418.

Adding to 1200000050 its reverse (500000021), we get a palindrome (1700000071).

The spelling of 1200000050 in words is "one billion, two hundred million, fifty", and thus it is an aban number.

Divisors: 1 2 5 10 25 50 24000001 48000002 120000005 240000010 600000025 1200000050