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315553423 is a prime number
BaseRepresentation
bin10010110011101…
…111011010001111
3210222202202220211
4102303233122033
51121240202143
651151223251
710551105553
oct2263573217
9728682824
10315553423
11152137a59
1289817b27
13504b5303
142dca1863
151ca8249d
hex12cef68f

315553423 has 2 divisors, whose sum is σ = 315553424. Its totient is φ = 315553422.

The previous prime is 315553421. The next prime is 315553429. The reversal of 315553423 is 324355513.

It is a weak prime.

It is an emirp because it is prime and its reverse (324355513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315553423 - 21 = 315553421 is a prime.

Together with 315553421, it forms a pair of twin primes.

It is equal to p17048317 and since 315553423 and 17048317 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315553421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157776711 + 157776712.

It is an arithmetic number, because the mean of its divisors is an integer number (157776712).

Almost surely, 2315553423 is an apocalyptic number.

315553423 is a deficient number, since it is larger than the sum of its proper divisors (1).

315553423 is an equidigital number, since it uses as much as digits as its factorization.

315553423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 31.

The square root of 315553423 is about 17763.8234341597. The cubic root of 315553423 is about 680.8074484204.

The spelling of 315553423 in words is "three hundred fifteen million, five hundred fifty-three thousand, four hundred twenty-three".