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20359055 = 56166751
BaseRepresentation
bin100110110101…
…0011110001111
31102022100101002
41031222132033
520202442210
62004210515
7335022563
oct115523617
942270332
1020359055
1110546072
126999a3b
1342aa9a2
1429bd6a3
151bc24a5
hex136a78f

20359055 has 8 divisors (see below), whose sum is σ = 24831744. Its totient is φ = 16020000.

The previous prime is 20359021. The next prime is 20359057. The reversal of 20359055 is 55095302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20359055 - 28 = 20358799 is a prime.

It is a super-2 number, since 2×203590552 = 828982240986050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20359057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33071 + ... + 33680.

It is an arithmetic number, because the mean of its divisors is an integer number (3103968).

Almost surely, 220359055 is an apocalyptic number.

20359055 is a deficient number, since it is larger than the sum of its proper divisors (4472689).

20359055 is an equidigital number, since it uses as much as digits as its factorization.

20359055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66817.

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 20359055 is about 4512.1009518848. The cubic root of 20359055 is about 273.0565121597.

The spelling of 20359055 in words is "twenty million, three hundred fifty-nine thousand, fifty-five".

Divisors: 1 5 61 305 66751 333755 4071811 20359055