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450391302145 = 5731233948773
BaseRepresentation
bin1101000110111010110…
…10011110000000000001
31121001112112200202020201
412203131122132000001
524334400133132040
6542523520405201
744353054621231
oct6433532360001
91531475622221
10450391302145
1116401216a554
1273357176801
13336194956a5
1417b28871cc1
15bab07d4a9a
hex68dd69e001

450391302145 has 8 divisors (see below), whose sum is σ = 547873255656. Its totient is φ = 355377246336.

The previous prime is 450391302107. The next prime is 450391302169. The reversal of 450391302145 is 541203193054.

It can be written as a sum of positive squares in 4 ways, for example, as 129392003521 + 320999298624 = 359711^2 + 566568^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 450391302145 - 219 = 450390777857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 616974022 + ... + 616974751.

It is an arithmetic number, because the mean of its divisors is an integer number (68484156957).

Almost surely, 2450391302145 is an apocalyptic number.

It is an amenable number.

450391302145 is a deficient number, since it is larger than the sum of its proper divisors (97481953511).

450391302145 is a wasteful number, since it uses less digits than its factorization.

450391302145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233948851.

The product of its (nonzero) digits is 64800, while the sum is 37.

Adding to 450391302145 its reverse (541203193054), we get a palindrome (991594495199).

The spelling of 450391302145 in words is "four hundred fifty billion, three hundred ninety-one million, three hundred two thousand, one hundred forty-five".

Divisors: 1 5 73 365 1233948773 6169743865 90078260429 450391302145