Search a number
-
+
1220102210 = 25294397843
BaseRepresentation
bin100100010111001…
…0100100001000010
310011000211121120202
41020232110201002
54444321232320
6321023005202
742143461205
oct11056244102
93130747522
101220102210
11576796938
122a0739802
13165a12292
14b808393c
15721abb75
hex48b94842

1220102210 has 32 divisors (see below), whose sum is σ = 2324773440. Its totient is φ = 460248768.

The previous prime is 1220102209. The next prime is 1220102237. The reversal of 1220102210 is 122010221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220102191 and 1220102200.

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, 36452 + ... + 61391.

It is an arithmetic number, because the mean of its divisors is an integer number (72649170).

Almost surely, 21220102210 is an apocalyptic number.

1220102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220102210 is a deficient number, since it is larger than the sum of its proper divisors (1104671230).

1220102210 is a wasteful number, since it uses less digits than its factorization.

1220102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97922.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1220102210 is about 34929.9614943962. The cubic root of 1220102210 is about 1068.5595693221.

Adding to 1220102210 its reverse (122010221), we get a palindrome (1342112431).

The spelling of 1220102210 in words is "one billion, two hundred twenty million, one hundred two thousand, two hundred ten".

Divisors: 1 2 5 10 29 43 58 86 145 215 290 430 1247 2494 6235 12470 97843 195686 489215 978430 2837447 4207249 5674894 8414498 14187235 21036245 28374470 42072490 122010221 244020442 610051105 1220102210