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448297245 = 32511905651
BaseRepresentation
bin11010101110000…
…111100100011101
31011020112212012200
4122232013210131
51404231002440
6112252322113
714052315024
oct3256074435
91136485180
10448297245
112100633a0
12106173339
1371b51956
14437778bb
1529553c30
hex1ab8791d

448297245 has 24 divisors (see below), whose sum is σ = 847690272. Its totient is φ = 217356000.

The previous prime is 448297243. The next prime is 448297253. The reversal of 448297245 is 542792844.

It is not a de Polignac number, because 448297245 - 21 = 448297243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 448297245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448297243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 452331 + ... + 453320.

It is an arithmetic number, because the mean of its divisors is an integer number (35320428).

Almost surely, 2448297245 is an apocalyptic number.

448297245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

448297245 is a deficient number, since it is larger than the sum of its proper divisors (399393027).

448297245 is a wasteful number, since it uses less digits than its factorization.

448297245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905673 (or 905670 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 448297245 is about 21173.0310772926. The cubic root of 448297245 is about 765.3416646327.

The spelling of 448297245 in words is "four hundred forty-eight million, two hundred ninety-seven thousand, two hundred forty-five".

Divisors: 1 3 5 9 11 15 33 45 55 99 165 495 905651 2716953 4528255 8150859 9962161 13584765 29886483 40754295 49810805 89659449 149432415 448297245