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230032020 = 22353833867
BaseRepresentation
bin11011011011000…
…00001010010100
3121000211211121110
431231200022110
5432342011040
634454215020
75462145201
oct1555401224
9530754543
10230032020
11108935509
1265054470
1338870a2a
142279cca8
15152dc980
hexdb60294

230032020 has 24 divisors (see below), whose sum is σ = 644089824. Its totient is φ = 61341856.

The previous prime is 230031961. The next prime is 230032021. The reversal of 230032020 is 20230032.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 230031987 and 230032005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230032021) 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, 1916874 + ... + 1916993.

It is an arithmetic number, because the mean of its divisors is an integer number (26837076).

Almost surely, 2230032020 is an apocalyptic number.

230032020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230032020 is an abundant number, since it is smaller than the sum of its proper divisors (414057804).

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

230032020 is a wasteful number, since it uses less digits than its factorization.

230032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833879 (or 3833877 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 230032020 is about 15166.8065195017. The cubic root of 230032020 is about 612.7209986905.

Adding to 230032020 its reverse (20230032), we get a palindrome (250262052).

The spelling of 230032020 in words is "two hundred thirty million, thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3833867 7667734 11501601 15335468 19169335 23003202 38338670 46006404 57508005 76677340 115016010 230032020