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20444033230 = 2517237173643
BaseRepresentation
bin10011000010100011…
…110011000011001110
31221202210001111022221
4103002203303003032
5313332133030410
613220350325554
71322423262265
oct230243630316
957683044287
1020444033230
11874113a835
123b667b98ba
131c0a6957aa
14dbd26d5dc
157e9c2b4da
hex4c28f30ce

20444033230 has 64 divisors (see below), whose sum is σ = 41231213568. Its totient is φ = 7258155520.

The previous prime is 20444033221. The next prime is 20444033261. The reversal of 20444033230 is 3233044402.

It is a junction number, because it is equal to n+sod(n) for n = 20444033195 and 20444033204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240789 + ... + 314431.

It is an arithmetic number, because the mean of its divisors is an integer number (644237712).

Almost surely, 220444033230 is an apocalyptic number.

20444033230 is an abundant number, since it is smaller than the sum of its proper divisors (20787180338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20444033230 is a wasteful number, since it uses less digits than its factorization.

20444033230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73761.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 20444033230 its reverse (3233044402), we get a palindrome (23677077632).

The spelling of 20444033230 in words is "twenty billion, four hundred forty-four million, thirty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 17 23 34 46 71 85 115 142 170 230 355 391 710 782 1207 1633 1955 2414 3266 3910 6035 8165 12070 16330 27761 55522 73643 138805 147286 277610 368215 736430 1251931 1693789 2503862 3387578 5228653 6259655 8468945 10457306 12519310 16937890 26143265 28794413 52286530 57588826 88887101 120259019 143972065 177774202 240518038 287944130 444435505 601295095 888871010 1202590190 2044403323 4088806646 10222016615 20444033230