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102130202 = 257189431
BaseRepresentation
bin1100001011001…
…10001000011010
321010011202022002
412011212020122
5202121131302
614045001002
72350043456
oct605461032
9233152262
10102130202
1152716a29
122a253162
131820b295
14d7c7666
158e75c02
hex616621a

102130202 has 8 divisors (see below), whose sum is σ = 153465312. Its totient is φ = 50975100.

The previous prime is 102130153. The next prime is 102130207. The reversal of 102130202 is 202031201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (102130207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43574 + ... + 45857.

It is an arithmetic number, because the mean of its divisors is an integer number (19183164).

Almost surely, 2102130202 is an apocalyptic number.

102130202 is a deficient number, since it is larger than the sum of its proper divisors (51335110).

102130202 is an equidigital number, since it uses as much as digits as its factorization.

102130202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90004.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 102130202 is about 10105.9488421424. The cubic root of 102130202 is about 467.4315943646.

Adding to 102130202 its reverse (202031201), we get a palindrome (304161403).

Subtracting 102130202 from its reverse (202031201), we obtain a palindrome (99900999).

The spelling of 102130202 in words is "one hundred two million, one hundred thirty thousand, two hundred two".

Divisors: 1 2 571 1142 89431 178862 51065101 102130202