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102011022202 = 251005511101
BaseRepresentation
bin101111100000001010…
…1001010101101111010
3100202022022201212002111
41133000111022231322
53132404310202302
6114510242122534
710240633244665
oct1370025125572
9322268655074
10102011022202
113a298620921
121792b35044a
1398093459cb
144d1a1886dc
1529c0a780d7
hex17c054ab7a

102011022202 has 4 divisors (see below), whose sum is σ = 153016533306. Its totient is φ = 51005511100.

The previous prime is 102011022187. The next prime is 102011022203. The reversal of 102011022202 is 202220110201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202220110201 = 257077786613.

It can be written as a sum of positive squares in only one way, i.e., 101487482041 + 523540161 = 318571^2 + 22881^2 .

It is a super-3 number, since 3×1020110222023 (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102011022203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25502755549 + ... + 25502755552.

Almost surely, 2102011022202 is an apocalyptic number.

102011022202 is a deficient number, since it is larger than the sum of its proper divisors (51005511104).

102011022202 is an equidigital number, since it uses as much as digits as its factorization.

102011022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51005511103.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102011022202 its reverse (202220110201), we get a palindrome (304231132403).

The spelling of 102011022202 in words is "one hundred two billion, eleven million, twenty-two thousand, two hundred two".

Divisors: 1 2 51005511101 102011022202