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12000070 = 251200007
BaseRepresentation
bin101101110001…
…101101000110
3211120200000001
4231301231012
511033000240
61105111514
7203666425
oct55615506
924520001
1012000070
116856915
12402859a
132642044
1418452bc
1510c089a
hexb71b46

12000070 has 8 divisors (see below), whose sum is σ = 21600144. Its totient is φ = 4800024.

The previous prime is 12000029. The next prime is 12000073. The reversal of 12000070 is 7000021.

Adding to 12000070 its reverse (7000021), we get a palindrome (19000091).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 1200007 = 12000070 / (1 + 2 + 0 + 0 + 0 + 0 + 7 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000073) 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 3 ways as a sum of consecutive naturals, for example, 599994 + ... + 600013.

It is an arithmetic number, because the mean of its divisors is an integer number (2700018).

Almost surely, 212000070 is an apocalyptic number.

12000070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12000070 is a deficient number, since it is larger than the sum of its proper divisors (9600074).

12000070 is a wasteful number, since it uses less digits than its factorization.

12000070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200014.

The product of its (nonzero) digits is 14, while the sum is 10.

The square root of 12000070 is about 3464.1117187527. Note that the first 3 decimals coincide. The cubic root of 12000070 is about 228.9432936765.

The spelling of 12000070 in words is "twelve million, seventy", and thus it is an aban number and an uban number.

Divisors: 1 2 5 10 1200007 2400014 6000035 12000070