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102001443 = 3191789499
BaseRepresentation
bin1100001010001…
…10101100100011
321002221012200020
412011012230203
5202103021233
614042124523
72345666205
oct605065443
9232835606
10102001443
1152639215
122a1b0743
13181947ab
14d792775
158e4c9b3
hex6146b23

102001443 has 8 divisors (see below), whose sum is σ = 143160000. Its totient is φ = 64421928.

The previous prime is 102001441. The next prime is 102001453. The reversal of 102001443 is 344100201.

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

It is not a de Polignac number, because 102001443 - 21 = 102001441 is a prime.

102001443 is a modest number, since divided by 1443 gives 102 as remainder.

It is not an unprimeable number, because it can be changed into a prime (102001441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894693 + ... + 894806.

It is an arithmetic number, because the mean of its divisors is an integer number (17895000).

Almost surely, 2102001443 is an apocalyptic number.

102001443 is a deficient number, since it is larger than the sum of its proper divisors (41158557).

102001443 is a wasteful number, since it uses less digits than its factorization.

102001443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789521.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 102001443 is about 10099.5763772546. The cubic root of 102001443 is about 467.2350761488.

Adding to 102001443 its reverse (344100201), we get a palindrome (446101644).

The spelling of 102001443 in words is "one hundred two million, one thousand, four hundred forty-three".

Divisors: 1 3 19 57 1789499 5368497 34000481 102001443