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20444223124 = 22133499112363
BaseRepresentation
bin10011000010100100…
…100001011010010100
31221202210102010211001
4103002210201122110
5313332210114444
613220354353044
71322425013023
oct230244413224
957683363731
1020444223124
11874125a476
123b6688b784
131c0a731060
14dbd2bc8ba
157e9c678d4
hex4c2921694

20444223124 has 24 divisors (see below), whose sum is σ = 38540852000. Its totient is φ = 9433014624.

The previous prime is 20444223101. The next prime is 20444223131. The reversal of 20444223124 is 42132244402.

It is a junction number, because it is equal to n+sod(n) for n = 20444223092 and 20444223101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125767 + ... + 238129.

Almost surely, 220444223124 is an apocalyptic number.

It is an amenable number.

20444223124 is a deficient number, since it is larger than the sum of its proper divisors (18096628876).

20444223124 is a wasteful number, since it uses less digits than its factorization.

20444223124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115879 (or 115877 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20444223124 its reverse (42132244402), we get a palindrome (62576467526).

The spelling of 20444223124 in words is "twenty billion, four hundred forty-four million, two hundred twenty-three thousand, one hundred twenty-four".

Divisors: 1 2 4 13 26 52 3499 6998 13996 45487 90974 112363 181948 224726 449452 1460719 2921438 5842876 393158137 786316274 1572632548 5111055781 10222111562 20444223124