Search a number
-
+
230200031220 = 22353836667187
BaseRepresentation
bin1101011001100011111…
…1011011011111110100
3211000012000222020010020
43112120333123133310
512232422201444340
6253430305325140
722426366660155
oct3263077333764
9730160866106
10230200031220
1189699a09695
12387456367b0
1318927c7c833
14b1dad1992c
155ec49119d0
hex3598fdb7f4

230200031220 has 24 divisors (see below), whose sum is σ = 644560087584. Its totient is φ = 61386674976.

The previous prime is 230200031213. The next prime is 230200031293. The reversal of 230200031220 is 22130002032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 230200031220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918333534 + ... + 1918333653.

It is an arithmetic number, because the mean of its divisors is an integer number (26856670316).

Almost surely, 2230200031220 is an apocalyptic number.

230200031220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230200031220 is an abundant number, since it is smaller than the sum of its proper divisors (414360056364).

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

230200031220 is a wasteful number, since it uses less digits than its factorization.

230200031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836667199 (or 3836667197 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 230200031220 its reverse (22130002032), we get a palindrome (252330033252).

The spelling of 230200031220 in words is "two hundred thirty billion, two hundred million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3836667187 7673334374 11510001561 15346668748 19183335935 23020003122 38366671870 46040006244 57550007805 76733343740 115100015610 230200031220