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4492881280 = 27514874721
BaseRepresentation
bin1000010111100101…
…11110110110000000
3102121010011000110101
410023302332312000
533200134200110
62021454012144
7216223601146
oct41362766600
912533130411
104492881280
1119a6129228
12a547a7054
13567a83544
143089b5596
151b468413a
hex10bcbed80

4492881280 has 64 divisors (see below), whose sum is σ = 10750294080. Its totient is φ = 1795563520.

The previous prime is 4492881269. The next prime is 4492881361. The reversal of 4492881280 is 821882944.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 4492881280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949320 + ... + 954040.

It is an arithmetic number, because the mean of its divisors is an integer number (167973345).

Almost surely, 24492881280 is an apocalyptic number.

4492881280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4492881280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5375147040).

4492881280 is an abundant number, since it is smaller than the sum of its proper divisors (6257412800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4492881280 is a wasteful number, since it uses less digits than its factorization.

4492881280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6227 (or 6215 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 4492881280 is about 67028.9585179421. The cubic root of 4492881280 is about 1650.0925910698.

The spelling of 4492881280 in words is "four billion, four hundred ninety-two million, eight hundred eighty-one thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 1487 2974 4721 5948 7435 9442 11896 14870 18884 23605 23792 29740 37768 47210 47584 59480 75536 94420 95168 118960 151072 188840 190336 237920 302144 377680 475840 604288 755360 951680 1510720 3021440 7020127 14040254 28080508 35100635 56161016 70201270 112322032 140402540 224644064 280805080 449288128 561610160 898576256 1123220320 2246440640 4492881280