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48121970 = 2513370169
BaseRepresentation
bin1011011110010…
…0100001110010
310100112211221012
42313210201302
544304400340
64435230522
71123013201
oct267444162
9110484835
1048121970
1125188826
1214148442
139c7b650
146569238
154358565
hex2de4872

48121970 has 16 divisors (see below), whose sum is σ = 93282840. Its totient is φ = 17768064.

The previous prime is 48121967. The next prime is 48121973. The reversal of 48121970 is 7912184.

48121970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 69372+1.

It is an interprime number because it is at equal distance from previous prime (48121967) and next prime (48121973).

It can be written as a sum of positive squares in 4 ways, for example, as 35724529 + 12397441 = 5977^2 + 3521^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (48121973) 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 7 ways as a sum of consecutive naturals, for example, 184955 + ... + 185214.

Almost surely, 248121970 is an apocalyptic number.

48121970 is a deficient number, since it is larger than the sum of its proper divisors (45160870).

48121970 is a wasteful number, since it uses less digits than its factorization.

48121970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370189.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 48121970 is about 6937.0000720773. Note that the first 4 decimals coincide. The cubic root of 48121970 is about 363.7316834776.

The spelling of 48121970 in words is "forty-eight million, one hundred twenty-one thousand, nine hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 370169 740338 1850845 3701690 4812197 9624394 24060985 48121970