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20323010 = 252032301
BaseRepresentation
bin100110110000…
…1101011000010
31102020111221002
41031201223002
520200314020
62003332002
7334512521
oct115415302
942214832
1020323010
1110520a84
126981002
134297466
1429b04b8
151bb6975
hex1361ac2

20323010 has 8 divisors (see below), whose sum is σ = 36581436. Its totient is φ = 8129200.

The previous prime is 20322983. The next prime is 20323013. The reversal of 20323010 is 1032302.

It can be written as a sum of positive squares in 2 ways, for example, as 20259001 + 64009 = 4501^2 + 253^2 .

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 = 20322982 and 20323000.

It is not an unprimeable number, because it can be changed into a prime (20323013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016141 + ... + 1016160.

Almost surely, 220323010 is an apocalyptic number.

20323010 is a deficient number, since it is larger than the sum of its proper divisors (16258426).

20323010 is a wasteful number, since it uses less digits than its factorization.

20323010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032308.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20323010 is about 4508.1049233575. The cubic root of 20323010 is about 272.8952712737.

Adding to 20323010 its reverse (1032302), we get a palindrome (21355312).

The spelling of 20323010 in words is "twenty million, three hundred twenty-three thousand, ten".

Divisors: 1 2 5 10 2032301 4064602 10161505 20323010