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3120402425 = 52717830871
BaseRepresentation
bin1011100111111101…
…1000111111111001
322001110120212102012
42321333120333321
522342310334200
61233345015305
7140216661110
oct27177307771
98043525365
103120402425
111361427588
12731024535
133a961c68a
142185c8c77
15133e28a35
hexb9fd8ff9

3120402425 has 12 divisors (see below), whose sum is σ = 4422056256. Its totient is φ = 2139704400.

The previous prime is 3120402413. The next prime is 3120402463. The reversal of 3120402425 is 5242040213.

It is a happy number.

It is not a de Polignac number, because 3120402425 - 26 = 3120402361 is a prime.

It is a super-2 number, since 2×31204024252 = 19473822587891761250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3120402425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8915261 + ... + 8915610.

It is an arithmetic number, because the mean of its divisors is an integer number (368504688).

Almost surely, 23120402425 is an apocalyptic number.

3120402425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3120402425 is a deficient number, since it is larger than the sum of its proper divisors (1301653831).

3120402425 is a wasteful number, since it uses less digits than its factorization.

3120402425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17830888 (or 17830883 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 3120402425 is about 55860.5623405279. The cubic root of 3120402425 is about 1461.2915363601.

Adding to 3120402425 its reverse (5242040213), we get a palindrome (8362442638).

The spelling of 3120402425 in words is "three billion, one hundred twenty million, four hundred two thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 175 17830871 89154355 124816097 445771775 624080485 3120402425