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354430213 is a prime number
BaseRepresentation
bin10101001000000…
…010110100000101
3220200220220211221
4111020002310011
51211213231323
655100400341
711532415144
oct2510026405
9820826757
10354430213
11172080735
129a8460b1
1358577827
143510175b
15211b155d
hex15202d05

354430213 has 2 divisors, whose sum is σ = 354430214. Its totient is φ = 354430212.

The previous prime is 354430211. The next prime is 354430231. The reversal of 354430213 is 312034453.

Together with next prime (354430231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330985249 + 23444964 = 18193^2 + 4842^2 .

It is an emirp because it is prime and its reverse (312034453) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 354430213 - 21 = 354430211 is a prime.

Together with 354430211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354430211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177215106 + 177215107.

It is an arithmetic number, because the mean of its divisors is an integer number (177215107).

Almost surely, 2354430213 is an apocalyptic number.

It is an amenable number.

354430213 is a deficient number, since it is larger than the sum of its proper divisors (1).

354430213 is an equidigital number, since it uses as much as digits as its factorization.

354430213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 354430213 is about 18826.3170322822. The cubic root of 354430213 is about 707.6908468903.

Adding to 354430213 its reverse (312034453), we get a palindrome (666464666).

The spelling of 354430213 in words is "three hundred fifty-four million, four hundred thirty thousand, two hundred thirteen".