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10021243143 = 310133329657
BaseRepresentation
bin10010101010101000…
…00000100100000111
3221212101201220020110
421111110000210013
5131010414240033
64334222004103
7503223106212
oct112524004407
927771656213
1010021243143
11428280432a
121b38116633
13c39217692
146b0cd2779
153d9ba7363
hex255500907

10021243143 has 8 divisors (see below), whose sum is σ = 13363016688. Its totient is φ = 6680149184.

The previous prime is 10021243081. The next prime is 10021243151. The reversal of 10021243143 is 34134212001.

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 10021243143 - 29 = 10021242631 is a prime.

It is a super-2 number, since 2×100212431432 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021243343) 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, 134430 + ... + 195227.

It is an arithmetic number, because the mean of its divisors is an integer number (1670377086).

Almost surely, 210021243143 is an apocalyptic number.

10021243143 is a deficient number, since it is larger than the sum of its proper divisors (3341773545).

10021243143 is a wasteful number, since it uses less digits than its factorization.

10021243143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339793.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 10021243143 its reverse (34134212001), we get a palindrome (44155455144).

The spelling of 10021243143 in words is "ten billion, twenty-one million, two hundred forty-three thousand, one hundred forty-three".

Divisors: 1 3 10133 30399 329657 988971 3340414381 10021243143