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23230012421 = 711437016011
BaseRepresentation
bin10101101000100111…
…011101110000000101
32012221221100220022102
4111220213131300011
5340033340344141
614401031441445
71451442563510
oct255047356005
965857326272
1023230012421
119940811180
124603826285
132262923ca5
1411a5283d77
1590e5e699b
hex5689ddc05

23230012421 has 16 divisors (see below), whose sum is σ = 29635634688. Its totient is φ = 17680345200.

The previous prime is 23230012417. The next prime is 23230012441. The reversal of 23230012421 is 12421003232.

It is not a de Polignac number, because 23230012421 - 22 = 23230012417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23230012393 and 23230012402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23230012441) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3504695 + ... + 3511316.

It is an arithmetic number, because the mean of its divisors is an integer number (1852227168).

Almost surely, 223230012421 is an apocalyptic number.

It is an amenable number.

23230012421 is a deficient number, since it is larger than the sum of its proper divisors (6405622267).

23230012421 is a wasteful number, since it uses less digits than its factorization.

23230012421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016072.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23230012421 its reverse (12421003232), we get a palindrome (35651015653).

The spelling of 23230012421 in words is "twenty-three billion, two hundred thirty million, twelve thousand, four hundred twenty-one".

Divisors: 1 7 11 43 77 301 473 3311 7016011 49112077 77176121 301688473 540232847 2111819311 3318573203 23230012421