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4494031784 = 231151068543
BaseRepresentation
bin1000010111101110…
…10111101110101000
3102121012022110122122
410023313113232220
533200433004114
62021534410412
7216236432324
oct41367275650
912535273578
104494031784
1119a6844660
12a55060a08
13568097108
14308bd4984
151b480ee8e
hex10bdd7ba8

4494031784 has 16 divisors (see below), whose sum is σ = 9192337920. Its totient is φ = 2042741680.

The previous prime is 4494031783. The next prime is 4494031799. The reversal of 4494031784 is 4871304944.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (4494031783) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25534184 + ... + 25534359.

It is an arithmetic number, because the mean of its divisors is an integer number (574521120).

Almost surely, 24494031784 is an apocalyptic number.

4494031784 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4494031784 is an abundant number, since it is smaller than the sum of its proper divisors (4698306136).

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

4494031784 is a wasteful number, since it uses less digits than its factorization.

4494031784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51068560 (or 51068556 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 4494031784 is about 67037.5401100011. The cubic root of 4494031784 is about 1650.2334269080.

The spelling of 4494031784 in words is "four billion, four hundred ninety-four million, thirty-one thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 11 22 44 88 51068543 102137086 204274172 408548344 561753973 1123507946 2247015892 4494031784