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102220202208 = 2531064793773
BaseRepresentation
bin101111100110011001…
…1001000000011100000
3100202211220100022010010
41133030303020003200
53133321332432313
6114543113404520
710246053245145
oct1371463100340
9322756308103
10102220202208
113a395703963
1217989409740
139840795567
144d39c7a3cc
1529d40e74c3
hex17cccc80e0

102220202208 has 24 divisors (see below), whose sum is σ = 268328031048. Its totient is φ = 34073400704.

The previous prime is 102220202171. The next prime is 102220202209. The reversal of 102220202208 is 802202022201.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220202209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532396791 + ... + 532396982.

It is an arithmetic number, because the mean of its divisors is an integer number (11180334627).

Almost surely, 2102220202208 is an apocalyptic number.

It is an amenable number.

102220202208 is an abundant number, since it is smaller than the sum of its proper divisors (166107828840).

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

102220202208 is a wasteful number, since it uses less digits than its factorization.

102220202208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064793786 (or 1064793778 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 102220202208 its reverse (802202022201), we get a palindrome (904422224409).

The spelling of 102220202208 in words is "one hundred two billion, two hundred twenty million, two hundred two thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1064793773 2129587546 3194381319 4259175092 6388762638 8518350184 12777525276 17036700368 25555050552 34073400736 51110101104 102220202208