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102320430220 = 22559711221299
BaseRepresentation
bin101111101001011000…
…1011101110010001100
3100210002212221102002201
41133102301131302030
53134023012231340
6115001053531244
710251411210121
oct1372261356214
9323085842081
10102320430220
113a437240728
12179b6aa3b24
139858488a88
144d492ca748
1529dcce479a
hex17d2c5dc8c

102320430220 has 48 divisors (see below), whose sum is σ = 221592672000. Its totient is φ = 39667759040.

The previous prime is 102320430169. The next prime is 102320430241. The reversal of 102320430220 is 22034023201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526870 + ... + 694429.

It is an arithmetic number, because the mean of its divisors is an integer number (4616514000).

Almost surely, 2102320430220 is an apocalyptic number.

102320430220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102320430220 is an abundant number, since it is smaller than the sum of its proper divisors (119272241780).

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

102320430220 is a wasteful number, since it uses less digits than its factorization.

102320430220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221438 (or 1221436 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 102320430220 its reverse (22034023201), we get a palindrome (124354453421).

The spelling of 102320430220 in words is "one hundred two billion, three hundred twenty million, four hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 59 71 118 142 236 284 295 355 590 710 1180 1420 4189 8378 16756 20945 41890 83780 1221299 2442598 4885196 6106495 12212990 24425980 72056641 86712229 144113282 173424458 288226564 346848916 360283205 433561145 720566410 867122290 1441132820 1734244580 5116021511 10232043022 20464086044 25580107555 51160215110 102320430220