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100131143 = 741348889
BaseRepresentation
bin1011111011111…
…10000101000111
320222102012002212
411331332011013
5201113144033
613534054035
72324046350
oct575760507
9228365085
10100131143
1151581012
122964a31b
131798b3c8
14d426d27
158bcd748
hex5f7e147

100131143 has 8 divisors (see below), whose sum is σ = 117227040. Its totient is φ = 83733120.

The previous prime is 100131127. The next prime is 100131149. The reversal of 100131143 is 341131001.

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 100131143 - 24 = 100131127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100131149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174158 + ... + 174731.

It is an arithmetic number, because the mean of its divisors is an integer number (14653380).

Almost surely, 2100131143 is an apocalyptic number.

100131143 is a deficient number, since it is larger than the sum of its proper divisors (17095897).

100131143 is an equidigital number, since it uses as much as digits as its factorization.

100131143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348937.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 100131143 is about 10006.5550015977. Note that the first 3 decimals coincide. The cubic root of 100131143 is about 464.3616986892.

Adding to 100131143 its reverse (341131001), we get a palindrome (441262144).

The spelling of 100131143 in words is "one hundred million, one hundred thirty-one thousand, one hundred forty-three".

Divisors: 1 7 41 287 348889 2442223 14304449 100131143