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4500047840 = 25528125299
BaseRepresentation
bin1000011000011100…
…10100011111100000
3102121121122010010112
410030032110133200
533204003012330
62022311350452
7216341530001
oct41416243740
912547563115
104500047840
1119aa183602
12a57082428
135693c2502
1430991d1a8
151b50ec795
hex10c3947e0

4500047840 has 24 divisors (see below), whose sum is σ = 10631363400. Its totient is φ = 1800019072.

The previous prime is 4500047833. The next prime is 4500047857. The reversal of 4500047840 is 487400054.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 4500047797 and 4500047806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14062490 + ... + 14062809.

It is an arithmetic number, because the mean of its divisors is an integer number (442973475).

Almost surely, 24500047840 is an apocalyptic number.

4500047840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4500047840 is an abundant number, since it is smaller than the sum of its proper divisors (6131315560).

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

4500047840 is a wasteful number, since it uses less digits than its factorization.

4500047840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28125314 (or 28125306 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 4500047840 is about 67082.3959023528. The cubic root of 4500047840 is about 1650.9694749525.

Adding to 4500047840 its reverse (487400054), we get a palindrome (4987447894).

The spelling of 4500047840 in words is "four billion, five hundred million, forty-seven thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 28125299 56250598 112501196 140626495 225002392 281252990 450004784 562505980 900009568 1125011960 2250023920 4500047840