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213005325 = 352131771181
BaseRepresentation
bin11001011001000…
…11010000001101
3112211210210101010
430230203100031
5414012132300
633045235433
75164341531
oct1454432015
9484723333
10213005325
11aa266065
125b402b79
133518ba70
1420409bc1
1513a77a50
hexcb2340d

213005325 has 96 divisors (see below), whose sum is σ = 409473792. Its totient is φ = 96768000.

The previous prime is 213005321. The next prime is 213005341. The reversal of 213005325 is 523500312.

It is not a de Polignac number, because 213005325 - 22 = 213005321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213005321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1176735 + ... + 1176915.

It is an arithmetic number, because the mean of its divisors is an integer number (4265352).

Almost surely, 2213005325 is an apocalyptic number.

213005325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213005325 is a deficient number, since it is larger than the sum of its proper divisors (196468467).

213005325 is a wasteful number, since it uses less digits than its factorization.

213005325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 213005325 is about 14594.7019496802. The cubic root of 213005325 is about 597.2142386850.

Adding to 213005325 its reverse (523500312), we get a palindrome (736505637).

It can be divided in two parts, 21300 and 5325, that multiplied together give a square (113422500 = 106502).

The spelling of 213005325 in words is "two hundred thirteen million, five thousand, three hundred twenty-five".

Divisors: 1 3 5 13 15 17 25 39 51 65 71 75 85 181 195 213 221 255 325 355 425 543 663 905 923 975 1065 1105 1207 1275 1775 2353 2715 2769 3077 3315 3621 4525 4615 5325 5525 6035 7059 9231 11765 12851 13575 13845 15385 15691 16575 18105 23075 30175 35295 38553 40001 46155 47073 58825 64255 69225 76925 78455 90525 120003 167063 176475 192765 200005 218467 230775 235365 321275 392275 501189 600015 655401 835315 963825 1000025 1092335 1176825 2505945 2840071 3000075 3277005 4176575 5461675 8520213 12529725 14200355 16385025 42601065 71001775 213005325