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20210404030 = 252021040403
BaseRepresentation
bin10010110100101000…
…100100101010111110
31221011111102220022121
4102310220210222332
5312342330412110
613141243033154
71313555412505
oct226450445276
957144386277
1020210404030
118631278753
123b0050b7ba
131ba116566b
14d9a21583c
157d447ccda
hex4b4a24abe

20210404030 has 8 divisors (see below), whose sum is σ = 36378727272. Its totient is φ = 8084161608.

The previous prime is 20210404013. The next prime is 20210404073. The reversal of 20210404030 is 3040401202.

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 = 20210403995 and 20210404013.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1010520192 + ... + 1010520211.

It is an arithmetic number, because the mean of its divisors is an integer number (4547340909).

Almost surely, 220210404030 is an apocalyptic number.

20210404030 is a deficient number, since it is larger than the sum of its proper divisors (16168323242).

20210404030 is a wasteful number, since it uses less digits than its factorization.

20210404030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021040410.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20210404030 its reverse (3040401202), we get a palindrome (23250805232).

The spelling of 20210404030 in words is "twenty billion, two hundred ten million, four hundred four thousand, thirty".

Divisors: 1 2 5 10 2021040403 4042080806 10105202015 20210404030