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235020020 = 22553221717
BaseRepresentation
bin11100000001000…
…01111011110100
3121101020020212012
432000201323310
5440131120040
635153143352
75552431364
oct1600417364
9541206765
10235020020
11110732024
126685ab58
13398c9201
14232da9a4
1515975865
hexe021ef4

235020020 has 24 divisors (see below), whose sum is σ = 502856424. Its totient is φ = 92233856.

The previous prime is 235020017. The next prime is 235020047. The reversal of 235020020 is 20020532.

235020020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 54493924 + 180526096 = 7382^2 + 13436^2 .

It is a junction number, because it is equal to n+sod(n) for n = 235019977 and 235020004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109799 + ... + 111918.

It is an arithmetic number, because the mean of its divisors is an integer number (20952351).

Almost surely, 2235020020 is an apocalyptic number.

235020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235020020 is an abundant number, since it is smaller than the sum of its proper divisors (267836404).

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

235020020 is a wasteful number, since it uses less digits than its factorization.

235020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221779 (or 221777 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 235020020 is about 15330.3626832505. The cubic root of 235020020 is about 617.1181026859.

Adding to 235020020 its reverse (20020532), we get a palindrome (255040552).

The spelling of 235020020 in words is "two hundred thirty-five million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 221717 443434 886868 1108585 2217170 4434340 11751001 23502002 47004004 58755005 117510010 235020020