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102004131 = 3172000081
BaseRepresentation
bin1100001010001…
…11010110100011
321002221100100210
412011013112203
5202103113011
614042145203
72346010065
oct605072643
9232840323
10102004131
1152640239
122a1b2203
1318195a98
14d793735
158e4d6a6
hex61475a3

102004131 has 8 divisors (see below), whose sum is σ = 144005904. Its totient is φ = 64002560.

The previous prime is 102004121. The next prime is 102004159. The reversal of 102004131 is 131400201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102004131 - 25 = 102004099 is a prime.

It is a super-2 number, since 2×1020041312 = 20809685482130322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102004121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999990 + ... + 1000091.

It is an arithmetic number, because the mean of its divisors is an integer number (18000738).

Almost surely, 2102004131 is an apocalyptic number.

102004131 is a deficient number, since it is larger than the sum of its proper divisors (42001773).

102004131 is a wasteful number, since it uses less digits than its factorization.

102004131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000101.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 102004131 is about 10099.7094512664. The cubic root of 102004131 is about 467.2391803942.

Adding to 102004131 its reverse (131400201), we get a palindrome (233404332).

The spelling of 102004131 in words is "one hundred two million, four thousand, one hundred thirty-one".

Divisors: 1 3 17 51 2000081 6000243 34001377 102004131