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20832753284 = 2271017366603
BaseRepresentation
bin10011011001101110…
…101001011010000100
31222202212111111222222
4103121232221122010
5320131141101114
613323114111512
71335153324020
oct233156513204
958685444888
1020832753284
118920600982
124054a1b598
131c70087a65
141018b39380
1581de1298e
hex4d9ba9684

20832753284 has 24 divisors (see below), whose sum is σ = 42078042048. Its totient is φ = 8839922400.

The previous prime is 20832753259. The next prime is 20832753289. The reversal of 20832753284 is 48235723802.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (20832753289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3680474 + ... + 3686129.

It is an arithmetic number, because the mean of its divisors is an integer number (1753251752).

Almost surely, 220832753284 is an apocalyptic number.

It is an amenable number.

20832753284 is an abundant number, since it is smaller than the sum of its proper divisors (21245288764).

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

20832753284 is a wasteful number, since it uses less digits than its factorization.

20832753284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7366715 (or 7366713 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 20832753284 in words is "twenty billion, eight hundred thirty-two million, seven hundred fifty-three thousand, two hundred eighty-four".

Divisors: 1 2 4 7 14 28 101 202 404 707 1414 2828 7366603 14733206 29466412 51566221 103132442 206264884 744026903 1488053806 2976107612 5208188321 10416376642 20832753284