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448240990 = 25105142649
BaseRepresentation
bin11010101101111…
…001110101011110
31011020110000001011
4122231321311132
51404222202430
6112251205434
714051662021
oct3255716536
91136400034
10448240990
112100250aa
1210614687a
1371b32172
14437611b8
152954222a
hex1ab79d5e

448240990 has 16 divisors (see below), whose sum is σ = 807620400. Its totient is φ = 179121600.

The previous prime is 448240957. The next prime is 448241009. The reversal of 448240990 is 99042844.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10815 + ... + 31834.

It is an arithmetic number, because the mean of its divisors is an integer number (50476275).

Almost surely, 2448240990 is an apocalyptic number.

448240990 is a deficient number, since it is larger than the sum of its proper divisors (359379410).

448240990 is a wasteful number, since it uses less digits than its factorization.

448240990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43707.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 448240990 is about 21171.7025767887. The cubic root of 448240990 is about 765.3096500881.

The spelling of 448240990 in words is "four hundred forty-eight million, two hundred forty thousand, nine hundred ninety".

Divisors: 1 2 5 10 1051 2102 5255 10510 42649 85298 213245 426490 44824099 89648198 224120495 448240990