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10030312021 = 19743710513
BaseRepresentation
bin10010101011101101…
…00110101001010101
3221220000210122101211
421111312212221111
5131020224441041
64335144221421
7503363150122
oct112566465125
927800718354
1010030312021
114287938974
121b3b16a871
13c3b071492
146b21b3749
153da899481
hex255da6a55

10030312021 has 8 divisors (see below), whose sum is σ = 10572448320. Its totient is φ = 9489598272.

The previous prime is 10030312007. The next prime is 10030312027. The reversal of 10030312021 is 12021303001.

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 10030312021 - 25 = 10030311989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10030311992 and 10030312010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10030312027) 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, 341140 + ... + 369373.

It is an arithmetic number, because the mean of its divisors is an integer number (1321556040).

Almost surely, 210030312021 is an apocalyptic number.

It is an amenable number.

10030312021 is a deficient number, since it is larger than the sum of its proper divisors (542136299).

10030312021 is an equidigital number, since it uses as much as digits as its factorization.

10030312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711275.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10030312021 its reverse (12021303001), we get a palindrome (22051615022).

The spelling of 10030312021 in words is "ten billion, thirty million, three hundred twelve thousand, twenty-one".

Divisors: 1 19 743 14117 710513 13499747 527911159 10030312021