Search a number
-
+
4050431449 = 31220532
BaseRepresentation
bin1111000101101100…
…1010110111011001
3101110021121020101121
43301123022313121
531243402301244
61505530445241
7202242046021
oct36133126731
911407536347
104050431449
1117993aa109
12950593821
134c71cb2cc
142a5d20a81
1518a8d7c84
hexf16cadd9

4050431449 has 9 divisors (see below), whose sum is σ = 4187344959. Its totient is φ = 3917863080.

The previous prime is 4050431423. The next prime is 4050431461. The reversal of 4050431449 is 9441340504.

The square root of 4050431449 is 63643.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2090775625 + 1959655824 = 45725^2 + 44268^2 .

It is not a de Polignac number, because 4050431449 - 25 = 4050431417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4050431149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1971907 + ... + 1973959.

It is an arithmetic number, because the mean of its divisors is an integer number (465260551).

Almost surely, 24050431449 is an apocalyptic number.

4050431449 is the 63643-rd square number.

4050431449 is the 31822-nd centered octagonal number.

It is an amenable number.

4050431449 is a deficient number, since it is larger than the sum of its proper divisors (136913510).

4050431449 is an frugal number, since it uses more digits than its factorization.

4050431449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168 (or 2084 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The cubic root of 4050431449 is about 1594.0444546007.

The spelling of 4050431449 in words is "four billion, fifty million, four hundred thirty-one thousand, four hundred forty-nine".

Divisors: 1 31 961 2053 63643 1972933 4214809 130659079 4050431449