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102424188 = 2238535349
BaseRepresentation
bin1100001101011…
…01111001111100
321010201200120110
412012231321330
5202210033223
614055150020
72352406536
oct606557174
9233650513
10102424188
11528a7899
122a375310
13182b2039
14d862856
158ed2d93
hex61ade7c

102424188 has 12 divisors (see below), whose sum is σ = 238989800. Its totient is φ = 34141392.

The previous prime is 102424187. The next prime is 102424199. The reversal of 102424188 is 881424201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102424181) 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, 4267663 + ... + 4267686.

Almost surely, 2102424188 is an apocalyptic number.

It is an amenable number.

102424188 is an abundant number, since it is smaller than the sum of its proper divisors (136565612).

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

102424188 is a wasteful number, since it uses less digits than its factorization.

102424188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8535356 (or 8535354 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 102424188 is about 10120.4835852839. The cubic root of 102424188 is about 467.8796717458.

Adding to 102424188 its reverse (881424201), we get a palindrome (983848389).

The spelling of 102424188 in words is "one hundred two million, four hundred twenty-four thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 12 8535349 17070698 25606047 34141396 51212094 102424188