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102311230208 = 281137981949
BaseRepresentation
bin101111101001000111…
…0010111101100000000
3100210002020122000001112
41133102032113230000
53134013133331313
6115000124422452
710251240051665
oct1372216275400
9323066560045
10102311230208
113a432027610
12179b39a7a28
1398565b7395
144d47db3a6c
1529dc0c88a8
hex17d2397b00

102311230208 has 72 divisors (see below), whose sum is σ = 228810061200. Its totient is φ = 45248163840.

The previous prime is 102311230201. The next prime is 102311230223. The reversal of 102311230208 is 802032113201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102311230201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386783 + ... + 595166.

Almost surely, 2102311230208 is an apocalyptic number.

It is an amenable number.

102311230208 is an abundant number, since it is smaller than the sum of its proper divisors (126498830992).

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

102311230208 is an equidigital number, since it uses as much as digits as its factorization.

102311230208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982013 (or 981999 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 102311230208 its reverse (802032113201), we get a palindrome (904343343409).

The spelling of 102311230208 in words is "one hundred two billion, three hundred eleven million, two hundred thirty thousand, two hundred eight".

Divisors: 1 2 4 8 11 16 22 32 37 44 64 74 88 128 148 176 256 296 352 407 592 704 814 1184 1408 1628 2368 2816 3256 4736 6512 9472 13024 26048 52096 104192 981949 1963898 3927796 7855592 10801439 15711184 21602878 31422368 36332113 43205756 62844736 72664226 86411512 125689472 145328452 172823024 251378944 290656904 345646048 399653243 581313808 691292096 799306486 1162627616 1382584192 1598612972 2325255232 2765168384 3197225944 4650510464 6394451888 9301020928 12788903776 25577807552 51155615104 102311230208