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213338386 = 2237183787
BaseRepresentation
bin11001011011101…
…00100100010010
3112212102201020201
430231310210102
5414103312021
633100325414
75200226542
oct1455644422
9485381221
10213338386
11aa473318
125b54386a
1335277541
1420495322
1513ae1591
hexcb74912

213338386 has 32 divisors (see below), whose sum is σ = 343139328. Its totient is φ = 99256080.

The previous prime is 213338371. The next prime is 213338393. The reversal of 213338386 is 683833312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270685 + ... + 271471.

It is an arithmetic number, because the mean of its divisors is an integer number (10723104).

Almost surely, 2213338386 is an apocalyptic number.

213338386 is a deficient number, since it is larger than the sum of its proper divisors (129800942).

213338386 is a wasteful number, since it uses less digits than its factorization.

213338386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966.

The product of its digits is 62208, while the sum is 37.

The square root of 213338386 is about 14606.1078319996. The cubic root of 213338386 is about 597.5253501380.

The spelling of 213338386 in words is "two hundred thirteen million, three hundred thirty-eight thousand, three hundred eighty-six".

Divisors: 1 2 23 46 71 83 142 166 787 1574 1633 1909 3266 3818 5893 11786 18101 36202 55877 65321 111754 130642 135539 271078 1285171 1502383 2570342 3004766 4637791 9275582 106669193 213338386