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32001020 = 2251600051
BaseRepresentation
bin111101000010…
…0101111111100
32020012211010222
41322010233330
531143013040
63101520512
7536001302
oct172045774
966184128
1032001020
1117077927
12a873138
136825a1c
144370272
152c21bb5
hex1e84bfc

32001020 has 12 divisors (see below), whose sum is σ = 67202184. Its totient is φ = 12800400.

The previous prime is 32001019. The next prime is 32001023. The reversal of 32001020 is 2010023.

It is a junction number, because it is equal to n+sod(n) for n = 32000989 and 32001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32001023) 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, 800006 + ... + 800045.

It is an arithmetic number, because the mean of its divisors is an integer number (5600182).

Almost surely, 232001020 is an apocalyptic number.

It is an amenable number.

32001020 is an abundant number, since it is smaller than the sum of its proper divisors (35201164).

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

32001020 is a wasteful number, since it uses less digits than its factorization.

32001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600060 (or 1600058 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 32001020 is about 5656.9444048886. The cubic root of 32001020 is about 317.4835835850.

Adding to 32001020 its reverse (2010023), we get a palindrome (34011043).

The spelling of 32001020 in words is "thirty-two million, one thousand, twenty".

Divisors: 1 2 4 5 10 20 1600051 3200102 6400204 8000255 16000510 32001020