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102010202208 = 2532647547453
BaseRepresentation
bin101111100000001001…
…0000010100001100000
3100202022021012012021100
41133000102002201200
53132404102432313
6114510212354400
710240623261225
oct1370022024140
9322267165240
10102010202208
113a298110842
121792b015a00
1398091196c5
144d1a01394c
1529c0965173
hex17c0482860

102010202208 has 72 divisors (see below), whose sum is σ = 290540407248. Its totient is φ = 33950783232.

The previous prime is 102010202201. The next prime is 102010202401. The reversal of 102010202208 is 802202010201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102010202201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87391 + ... + 460062.

It is an arithmetic number, because the mean of its divisors is an integer number (4035283434).

Almost surely, 2102010202208 is an apocalyptic number.

102010202208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

102010202208 is an abundant number, since it is smaller than the sum of its proper divisors (188530205040).

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

102010202208 is a wasteful number, since it uses less digits than its factorization.

102010202208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548116 (or 548105 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102010202208 its reverse (802202010201), we get a palindrome (904212212409).

The spelling of 102010202208 in words is "one hundred two billion, ten million, two hundred two thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 647 1294 1941 2588 3882 5176 5823 7764 10352 11646 15528 20704 23292 31056 46584 62112 93168 186336 547453 1094906 1642359 2189812 3284718 4379624 4927077 6569436 8759248 9854154 13138872 17518496 19708308 26277744 39416616 52555488 78833232 157666464 354202091 708404182 1062606273 1416808364 2125212546 2833616728 3187818819 4250425092 5667233456 6375637638 8500850184 11334466912 12751275276 17001700368 25502550552 34003400736 51005101104 102010202208