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55083020 = 2252754151
BaseRepresentation
bin1101001000100…
…0000000001100
310211122111200212
43102020000030
5103100124040
65244341552
71236124616
oct322100014
9124574625
1055083020
1129102763
12165448b8
13b547c05
14745bdb6
154c80d65
hex348800c

55083020 has 12 divisors (see below), whose sum is σ = 115674384. Its totient is φ = 22033200.

The previous prime is 55082981. The next prime is 55083023. The reversal of 55083020 is 2038055.

It is not an unprimeable number, because it can be changed into a prime (55083023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377056 + ... + 1377095.

It is an arithmetic number, because the mean of its divisors is an integer number (9639532).

Almost surely, 255083020 is an apocalyptic number.

It is an amenable number.

55083020 is an abundant number, since it is smaller than the sum of its proper divisors (60591364).

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

55083020 is a wasteful number, since it uses less digits than its factorization.

55083020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754160 (or 2754158 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 55083020 is about 7421.7935837640. The cubic root of 55083020 is about 380.4864960100.

The spelling of 55083020 in words is "fifty-five million, eighty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 2754151 5508302 11016604 13770755 27541510 55083020