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253412323 = 821308663
BaseRepresentation
bin11110001101011…
…00001111100011
3122122211200100121
433012230033203
51004333143243
641051301111
76164653303
oct1706541743
9578750317
10253412323
1112005447a
1270a4a797
1340668928
1425927603
15173aa1ed
hexf1ac3e3

253412323 has 4 divisors (see below), whose sum is σ = 253721808. Its totient is φ = 253102840.

The previous prime is 253412317. The next prime is 253412347. The reversal of 253412323 is 323214352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-253412323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253452323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153511 + ... + 155152.

It is an arithmetic number, because the mean of its divisors is an integer number (63430452).

Almost surely, 2253412323 is an apocalyptic number.

253412323 is a deficient number, since it is larger than the sum of its proper divisors (309485).

253412323 is an equidigital number, since it uses as much as digits as its factorization.

253412323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309484.

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

The square root of 253412323 is about 15918.9297064847. The cubic root of 253412323 is about 632.8137542541.

Adding to 253412323 its reverse (323214352), we get a palindrome (576626675).

The spelling of 253412323 in words is "two hundred fifty-three million, four hundred twelve thousand, three hundred twenty-three".

Divisors: 1 821 308663 253412323