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3121041443 = 13541443771
BaseRepresentation
bin1011101000000111…
…0101000000100011
322001111210022222112
42322001311000203
522342441311233
61233410425535
7140225262122
oct27201650043
98044708875
103121041443
1113618236a3
127312922ab
133a97b44b0
14218713ab9
15134003048
hexba075023

3121041443 has 8 divisors (see below), whose sum is σ = 3367341936. Its totient is φ = 2875629600.

The previous prime is 3121041431. The next prime is 3121041481. The reversal of 3121041443 is 3441401213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3121041443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121041493) 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, 214853 + ... + 228918.

It is an arithmetic number, because the mean of its divisors is an integer number (420917742).

Almost surely, 23121041443 is an apocalyptic number.

3121041443 is a deficient number, since it is larger than the sum of its proper divisors (246300493).

3121041443 is a wasteful number, since it uses less digits than its factorization.

3121041443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444325.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 3121041443 is about 55866.2818075447. The cubic root of 3121041443 is about 1461.3912807448.

Adding to 3121041443 its reverse (3441401213), we get a palindrome (6562442656).

The spelling of 3121041443 in words is "three billion, one hundred twenty-one million, forty-one thousand, four hundred forty-three".

Divisors: 1 13 541 7033 443771 5769023 240080111 3121041443