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102424202 = 251212101
BaseRepresentation
bin1100001101011…
…01111010001010
321010201200120222
412012231322022
5202210033302
614055150042
72352406556
oct606557212
9233650528
10102424202
11528a7901
122a375322
13182b204a
14d862866
158ed2da2
hex61ade8a

102424202 has 4 divisors (see below), whose sum is σ = 153636306. Its totient is φ = 51212100.

The previous prime is 102424199. The next prime is 102424207. The reversal of 102424202 is 202424201.

Adding to 102424202 its reverse (202424201), we get a palindrome (304848403).

Subtracting 102424202 from its reverse (202424201), we obtain a palindrome (99999999).

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: 202424201 = 728917743.

It can be written as a sum of positive squares in only one way, i.e., 75186241 + 27237961 = 8671^2 + 5219^2 .

It is not an unprimeable number, because it can be changed into a prime (102424207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25606049 + ... + 25606052.

Almost surely, 2102424202 is an apocalyptic number.

102424202 is a deficient number, since it is larger than the sum of its proper divisors (51212104).

102424202 is an equidigital number, since it uses as much as digits as its factorization.

102424202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51212103.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 102424202 is about 10120.4842769504. The cubic root of 102424202 is about 467.8796930634.

The spelling of 102424202 in words is "one hundred two million, four hundred twenty-four thousand, two hundred two".

Divisors: 1 2 51212101 102424202