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213553353 = 3137969313
BaseRepresentation
bin11001011101010…
…01000011001001
3112212211122010110
430232221003021
5414132201403
633105104533
75202113346
oct1456510311
9485748113
10213553353
11aa5aa882
125b628149
1335321340
142050d7cd
1513b35103
hexcba90c9

213553353 has 16 divisors (see below), whose sum is σ = 310526720. Its totient is φ = 129752064.

The previous prime is 213553313. The next prime is 213553387. The reversal of 213553353 is 353355312.

It is not a de Polignac number, because 213553353 - 29 = 213552841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213553353.

It is not an unprimeable number, because it can be changed into a prime (213553313) 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 15 ways as a sum of consecutive naturals, for example, 31576 + ... + 37737.

It is an arithmetic number, because the mean of its divisors is an integer number (19407920).

Almost surely, 2213553353 is an apocalyptic number.

It is an amenable number.

213553353 is a deficient number, since it is larger than the sum of its proper divisors (96973367).

213553353 is a wasteful number, since it uses less digits than its factorization.

213553353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69408.

The product of its digits is 20250, while the sum is 30.

The square root of 213553353 is about 14613.4647842324. The cubic root of 213553353 is about 597.7259783755.

The spelling of 213553353 in words is "two hundred thirteen million, five hundred fifty-three thousand, three hundred fifty-three".

Divisors: 1 3 13 39 79 237 1027 3081 69313 207939 901069 2703207 5475727 16427181 71184451 213553353