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319450453 = 726519397
BaseRepresentation
bin10011000010100…
…110110101010101
3211021002202122021
4103002212311111
51123234403303
651410533141
710626166300
oct2302466525
9737082567
10319450453
11154359943
128ab971b1
135124b04a
14305d7b37
151d0a1ebd
hex130a6d55

319450453 has 6 divisors (see below), whose sum is σ = 371605686. Its totient is φ = 273814632.

The previous prime is 319450441. The next prime is 319450463. The reversal of 319450453 is 354054913.

It can be written as a sum of positive squares in only one way, i.e., 196196049 + 123254404 = 14007^2 + 11102^2 .

It is not a de Polignac number, because 319450453 - 213 = 319442261 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 (319450433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3259650 + ... + 3259747.

It is an arithmetic number, because the mean of its divisors is an integer number (61934281).

Almost surely, 2319450453 is an apocalyptic number.

It is an amenable number.

319450453 is a deficient number, since it is larger than the sum of its proper divisors (52155233).

319450453 is an equidigital number, since it uses as much as digits as its factorization.

319450453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6519411 (or 6519404 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 319450453 is about 17873.1769140240. The cubic root of 319450453 is about 683.5986075879.

The spelling of 319450453 in words is "three hundred nineteen million, four hundred fifty thousand, four hundred fifty-three".

Divisors: 1 7 49 6519397 45635779 319450453