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32020055120 = 245400250689
BaseRepresentation
bin11101110100100010…
…110100010001010000
310001122112101100001102
4131310202310101100
51011034113230440
622413152523532
72212325656244
oct356442642120
9101575340042
1032020055120
1112641539379
1262575505a8
133033a419a1
14179a844424
15c7614db15
hex7748b4450

32020055120 has 20 divisors (see below), whose sum is σ = 74446628340. Its totient is φ = 12808022016.

The previous prime is 32020055071. The next prime is 32020055129. The reversal of 32020055120 is 2155002023.

It can be written as a sum of positive squares in 2 ways, for example, as 16530759184 + 15489295936 = 128572^2 + 124456^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 32020055092 and 32020055101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32020055129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200125265 + ... + 200125424.

It is an arithmetic number, because the mean of its divisors is an integer number (3722331417).

Almost surely, 232020055120 is an apocalyptic number.

It is an amenable number.

32020055120 is an abundant number, since it is smaller than the sum of its proper divisors (42426573220).

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

32020055120 is a wasteful number, since it uses less digits than its factorization.

32020055120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400250702 (or 400250696 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 32020055120 its reverse (2155002023), we get a palindrome (34175057143).

The spelling of 32020055120 in words is "thirty-two billion, twenty million, fifty-five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 400250689 800501378 1601002756 2001253445 3202005512 4002506890 6404011024 8005013780 16010027560 32020055120