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13203023223 = 313550361519
BaseRepresentation
bin11000100101111011…
…00010010101110111
31021002010211001222010
430102331202111313
5204014433220343
610022042335303
7645116563035
oct142275422567
937063731863
1013203023223
115665842845
1226857ba533
1313254770a0
148d36d7555
155241a6d33
hex312f62577

13203023223 has 16 divisors (see below), whose sum is σ = 18961940480. Its totient is φ = 8123328864.

The previous prime is 13203023219. The next prime is 13203023233. The reversal of 13203023223 is 32232030231.

It is not a de Polignac number, because 13203023223 - 22 = 13203023219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13203023223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203023203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183858 + ... + 245376.

It is an arithmetic number, because the mean of its divisors is an integer number (1185121280).

Almost surely, 213203023223 is an apocalyptic number.

13203023223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13203023223 is a deficient number, since it is larger than the sum of its proper divisors (5758917257).

13203023223 is a wasteful number, since it uses less digits than its factorization.

13203023223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67038.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 13203023223 its reverse (32232030231), we get a palindrome (45435053454).

The spelling of 13203023223 in words is "thirteen billion, two hundred three million, twenty-three thousand, two hundred twenty-three".

Divisors: 1 3 13 39 5503 16509 61519 71539 184557 214617 799747 2399241 338539057 1015617171 4401007741 13203023223