Search a number
-
+
102320220 = 22354339659
BaseRepresentation
bin1100001100101…
…00100001011100
321010112101221210
412012110201130
5202143221340
614053024420
72351464452
oct606244134
9233471853
10102320220
1152836772
122a325110
1318276912
14d8369d2
158eb2180
hex619485c

102320220 has 48 divisors (see below), whose sum is σ = 293166720. Its totient is φ = 26650176.

The previous prime is 102320201. The next prime is 102320279. The reversal of 102320220 is 22023201.

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 = 102320196 and 102320205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17250 + ... + 22409.

It is an arithmetic number, because the mean of its divisors is an integer number (6107640).

Almost surely, 2102320220 is an apocalyptic number.

102320220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102320220 is an abundant number, since it is smaller than the sum of its proper divisors (190846500).

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

102320220 is a wasteful number, since it uses less digits than its factorization.

102320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39714 (or 39712 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 102320220 is about 10115.3457676938. The cubic root of 102320220 is about 467.7213075183.

Adding to 102320220 its reverse (22023201), we get a palindrome (124343421).

The spelling of 102320220 in words is "one hundred two million, three hundred twenty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 39659 79318 118977 158636 198295 237954 396590 475908 594885 793180 1189770 1705337 2379540 3410674 5116011 6821348 8526685 10232022 17053370 20464044 25580055 34106740 51160110 102320220