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21030113030 = 252103011303
BaseRepresentation
bin10011100101011111…
…100000111100000110
32000021121212102200012
4103211133200330012
5321032202104110
613354444150222
71343101003613
oct234537407406
960247772605
1021030113030
118a11a50203
1240aab38372
131ca1c29384
14103703150a
158313e9905
hex4e57e0f06

21030113030 has 8 divisors (see below), whose sum is σ = 37854203472. Its totient is φ = 8412045208.

The previous prime is 21030113029. The next prime is 21030113057. The reversal of 21030113030 is 3031103012.

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

It is a junction number, because it is equal to n+sod(n) for n = 21030112996 and 21030113014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051505642 + ... + 1051505661.

It is an arithmetic number, because the mean of its divisors is an integer number (4731775434).

Almost surely, 221030113030 is an apocalyptic number.

21030113030 is a deficient number, since it is larger than the sum of its proper divisors (16824090442).

21030113030 is a wasteful number, since it uses less digits than its factorization.

21030113030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103011310.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 21030113030 its reverse (3031103012), we get a palindrome (24061216042).

The spelling of 21030113030 in words is "twenty-one billion, thirty million, one hundred thirteen thousand, thirty".

Divisors: 1 2 5 10 2103011303 4206022606 10515056515 21030113030