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213353441 = 7227134269
BaseRepresentation
bin11001011011110…
…00001111100001
3112212110110220022
430231320033201
5414104302231
633100523225
75200321460
oct1455701741
9485413808
10213353441
11aa483664
125b550515
1335281352
142049a9d7
1513ae5c7b
hexcb783e1

213353441 has 8 divisors (see below), whose sum is σ = 244908480. Its totient is φ = 182067408.

The previous prime is 213353431. The next prime is 213353453. The reversal of 213353441 is 144353312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-213353441 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 213353441.

It is not an unprimeable number, because it can be changed into a prime (213353431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65546 + ... + 68723.

It is an arithmetic number, because the mean of its divisors is an integer number (30613560).

Almost surely, 2213353441 is an apocalyptic number.

It is an amenable number.

213353441 is a deficient number, since it is larger than the sum of its proper divisors (31555039).

213353441 is a wasteful number, since it uses less digits than its factorization.

213353441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134503.

The product of its digits is 4320, while the sum is 26.

The square root of 213353441 is about 14606.6231894987. The cubic root of 213353441 is about 597.5394053247.

The spelling of 213353441 in words is "two hundred thirteen million, three hundred fifty-three thousand, four hundred forty-one".

Divisors: 1 7 227 1589 134269 939883 30479063 213353441