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3443121401 = 171371478369
BaseRepresentation
bin1100110100111001…
…1101110011111001
322212221211200121212
43031032131303321
524022414341101
61325354012505
7151216022546
oct31516356371
98787750555
103443121401
111507609085
12801117135
1342b443355
142493d3bcd
151524241bb
hexcd39dcf9

3443121401 has 8 divisors (see below), whose sum is σ = 3672271080. Its totient is φ = 3216928768.

The previous prime is 3443121391. The next prime is 3443121403. The reversal of 3443121401 is 1041213443.

It can be written as a sum of positive squares in 4 ways, for example, as 203804176 + 3239317225 = 14276^2 + 56915^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-3443121401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3443121403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736856 + ... + 741513.

It is an arithmetic number, because the mean of its divisors is an integer number (459033885).

Almost surely, 23443121401 is an apocalyptic number.

It is an amenable number.

3443121401 is a deficient number, since it is larger than the sum of its proper divisors (229149679).

3443121401 is a wasteful number, since it uses less digits than its factorization.

3443121401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478523.

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

The square root of 3443121401 is about 58678.1168835538. The cubic root of 3443121401 is about 1510.0249109233.

Adding to 3443121401 its reverse (1041213443), we get a palindrome (4484334844).

The spelling of 3443121401 in words is "three billion, four hundred forty-three million, one hundred twenty-one thousand, four hundred one".

Divisors: 1 17 137 2329 1478369 25132273 202536553 3443121401