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200711389 is a prime number
BaseRepresentation
bin10111111011010…
…01110011011101
3111222200012021011
423331221303131
5402340231024
631525535221
74655006254
oct1375516335
9458605234
10200711389
11a332948a
1257274511
1332776048
141c92979b
151294a094
hexbf69cdd

200711389 has 2 divisors, whose sum is σ = 200711390. Its totient is φ = 200711388.

The previous prime is 200711387. The next prime is 200711461. The reversal of 200711389 is 983117002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172003225 + 28708164 = 13115^2 + 5358^2 .

It is a cyclic number.

It is not a de Polignac number, because 200711389 - 21 = 200711387 is a prime.

Together with 200711387, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 200711389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200711387) 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 as a sum of consecutive naturals, namely, 100355694 + 100355695.

It is an arithmetic number, because the mean of its divisors is an integer number (100355695).

Almost surely, 2200711389 is an apocalyptic number.

It is an amenable number.

200711389 is a deficient number, since it is larger than the sum of its proper divisors (1).

200711389 is an equidigital number, since it uses as much as digits as its factorization.

200711389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 200711389 is about 14167.2646971813. The cubic root of 200711389 is about 585.4960985203.

The spelling of 200711389 in words is "two hundred million, seven hundred eleven thousand, three hundred eighty-nine".