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213344320203 = 3375209216703
BaseRepresentation
bin1100011010110001001…
…1111111101011001011
3202101200022222101111000
43012230103333223023
511443412121221303
6242001541110043
721261604541430
oct3065423775313
9671608871430
10213344320203
118252a341503
12354206b8323
131716cb38a31
14a47c479b87
155839c3bda3
hex31ac4ffacb

213344320203 has 32 divisors (see below), whose sum is σ = 361288908800. Its totient is φ = 121887073728.

The previous prime is 213344320183. The next prime is 213344320219. The reversal of 213344320203 is 302023443312.

213344320203 is a `hidden beast` number, since 2 + 1 + 334 + 4 + 320 + 2 + 0 + 3 = 666.

It is not a de Polignac number, because 213344320203 - 217 = 213344189131 is a prime.

It is a super-2 number, since 2×2133443202032 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213344320103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 876150 + ... + 1092852.

It is an arithmetic number, because the mean of its divisors is an integer number (11290278400).

Almost surely, 2213344320203 is an apocalyptic number.

213344320203 is a deficient number, since it is larger than the sum of its proper divisors (147944588597).

213344320203 is a wasteful number, since it uses less digits than its factorization.

213344320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221928 (or 221922 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 213344320203 its reverse (302023443312), we get a palindrome (515367763515).

The spelling of 213344320203 in words is "two hundred thirteen billion, three hundred forty-four million, three hundred twenty thousand, two hundred three".

Divisors: 1 3 7 9 21 27 63 189 5209 15627 36463 46881 109389 140643 216703 328167 650109 984501 1516921 1950327 4550763 5850981 13652289 40956867 1128805927 3386417781 7901641489 10159253343 23704924467 30477760029 71114773401 213344320203