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3120433421 = 7445776203
BaseRepresentation
bin1011100111111110…
…0000100100001101
322001110122102221012
42321333200210031
522342312332141
61233345415005
7140220150350
oct27177404415
98043572835
103120433421
1113614488a6
1273103a465
133a9630811
142185d6297
15133e32ceb
hexb9fe090d

3120433421 has 4 divisors (see below), whose sum is σ = 3566209632. Its totient is φ = 2674657212.

The previous prime is 3120433409. The next prime is 3120433423. The reversal of 3120433421 is 1243340213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1243340213 = 3347371479.

It is a cyclic number.

It is not a de Polignac number, because 3120433421 - 26 = 3120433357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120433423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 222888095 + ... + 222888108.

It is an arithmetic number, because the mean of its divisors is an integer number (891552408).

Almost surely, 23120433421 is an apocalyptic number.

It is an amenable number.

3120433421 is a deficient number, since it is larger than the sum of its proper divisors (445776211).

3120433421 is an equidigital number, since it uses as much as digits as its factorization.

3120433421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445776210.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3120433421 is about 55860.8397806549. The cubic root of 3120433421 is about 1461.2963748432.

Adding to 3120433421 its reverse (1243340213), we get a palindrome (4363773634).

The spelling of 3120433421 in words is "three billion, one hundred twenty million, four hundred thirty-three thousand, four hundred twenty-one".

Divisors: 1 7 445776203 3120433421