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253229143 is a prime number
BaseRepresentation
bin11110001011111…
…11100001010111
3122122111101002011
433011333201113
51004311313033
641043325051
76163261246
oct1705774127
9578441064
10253229143
1111aa39892
1270980787
134060343b
14258ba95d
1517370ccd
hexf17f857

253229143 has 2 divisors, whose sum is σ = 253229144. Its totient is φ = 253229142.

The previous prime is 253229129. The next prime is 253229153. The reversal of 253229143 is 341922352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253229143 - 213 = 253220951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253229153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126614571 + 126614572.

It is an arithmetic number, because the mean of its divisors is an integer number (126614572).

Almost surely, 2253229143 is an apocalyptic number.

253229143 is a deficient number, since it is larger than the sum of its proper divisors (1).

253229143 is an equidigital number, since it uses as much as digits as its factorization.

253229143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 31.

The square root of 253229143 is about 15913.1751388590. The cubic root of 253229143 is about 632.6612402746.

The spelling of 253229143 in words is "two hundred fifty-three million, two hundred twenty-nine thousand, one hundred forty-three".