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220102330 = 25713922621
BaseRepresentation
bin11010001111001…
…11111010111010
3120100011100122011
431013213322322
5422321233310
633501320134
75311560520
oct1507477272
9510140564
10220102330
11103273158
126186604a
13367a5186
1421336310
15144ca78a
hexd1e7eba

220102330 has 32 divisors (see below), whose sum is σ = 456059520. Its totient is φ = 74917440.

The previous prime is 220102313. The next prime is 220102339. The reversal of 220102330 is 33201022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 220102330.

It is not an unprimeable number, because it can be changed into a prime (220102339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1581 + ... + 21040.

It is an arithmetic number, because the mean of its divisors is an integer number (14251860).

Almost surely, 2220102330 is an apocalyptic number.

220102330 is an abundant number, since it is smaller than the sum of its proper divisors (235957190).

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

220102330 is a wasteful number, since it uses less digits than its factorization.

220102330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22774.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 220102330 is about 14835.8461167538. The cubic root of 220102330 is about 603.7746571780.

Adding to 220102330 its reverse (33201022), we get a palindrome (253303352).

The spelling of 220102330 in words is "two hundred twenty million, one hundred two thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 139 278 695 973 1390 1946 4865 9730 22621 45242 113105 158347 226210 316694 791735 1583470 3144319 6288638 15721595 22010233 31443190 44020466 110051165 220102330