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213468741 = 3240159149
BaseRepresentation
bin11001011100101…
…00011001000101
3112212200100001200
430232110121011
5414121444431
633103213113
75201311563
oct1456243105
9485610050
10213468741
11aa552252
125b5a7199
13352c1985
14204caa33
1513b19ee6
hexcb94645

213468741 has 12 divisors (see below), whose sum is σ = 309117900. Its totient is φ = 141955200.

The previous prime is 213468737. The next prime is 213468791. The reversal of 213468741 is 147864312.

It can be written as a sum of positive squares in 2 ways, for example, as 211702500 + 1766241 = 14550^2 + 1329^2 .

It is not a de Polignac number, because 213468741 - 22 = 213468737 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 213468696 and 213468705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213468721) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 25966 + ... + 33183.

It is an arithmetic number, because the mean of its divisors is an integer number (25759825).

Almost surely, 2213468741 is an apocalyptic number.

It is an amenable number.

213468741 is a deficient number, since it is larger than the sum of its proper divisors (95649159).

213468741 is a wasteful number, since it uses less digits than its factorization.

213468741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59556 (or 59553 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 213468741 is about 14610.5694960874. The cubic root of 213468741 is about 597.6470262531.

The spelling of 213468741 in words is "two hundred thirteen million, four hundred sixty-eight thousand, seven hundred forty-one".

Divisors: 1 3 9 401 1203 3609 59149 177447 532341 23718749 71156247 213468741