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102211313312 = 2523138874067
BaseRepresentation
bin101111100110001000…
…1001101111010100000
3100202211021121200211202
41133030101031322200
53133312044011222
6114542155100332
710245614554043
oct1371421157240
9322737550752
10102211313312
113a390692569
12179864416a8
13983b9a2664
144d38a04c5a
1529d343d892
hex17cc44dea0

102211313312 has 24 divisors (see below), whose sum is σ = 209977590816. Its totient is φ = 48883671232.

The previous prime is 102211313311. The next prime is 102211313387. The reversal of 102211313312 is 213313112201.

It is a happy number.

It is a super-3 number, since 3×1022113133123 (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102211313311) 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, 69436298 + ... + 69437769.

It is an arithmetic number, because the mean of its divisors is an integer number (8749066284).

Almost surely, 2102211313312 is an apocalyptic number.

It is an amenable number.

102211313312 is an abundant number, since it is smaller than the sum of its proper divisors (107766277504).

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

102211313312 is a wasteful number, since it uses less digits than its factorization.

102211313312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138874100 (or 138874092 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 102211313312 its reverse (213313112201), we get a palindrome (315524425513).

The spelling of 102211313312 in words is "one hundred two billion, two hundred eleven million, three hundred thirteen thousand, three hundred twelve".

Divisors: 1 2 4 8 16 23 32 46 92 184 368 736 138874067 277748134 555496268 1110992536 2221985072 3194103541 4443970144 6388207082 12776414164 25552828328 51105656656 102211313312