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253423943 is a prime number
BaseRepresentation
bin11110001101011…
…11000101000111
3122122212021021222
433012233011013
51004334031233
641051430555
76165032213
oct1706570507
9578767258
10253423943
11120062183
1270a5545b
1340670cc6
142592b943
15173ad898
hexf1af147

253423943 has 2 divisors, whose sum is σ = 253423944. Its totient is φ = 253423942.

The previous prime is 253423873. The next prime is 253423979. The reversal of 253423943 is 349324352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253423943 - 212 = 253419847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253423043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126711971 + 126711972.

It is an arithmetic number, because the mean of its divisors is an integer number (126711972).

Almost surely, 2253423943 is an apocalyptic number.

253423943 is a deficient number, since it is larger than the sum of its proper divisors (1).

253423943 is an equidigital number, since it uses as much as digits as its factorization.

253423943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 35.

The square root of 253423943 is about 15919.2946765866. The cubic root of 253423943 is about 632.8234264796.

The spelling of 253423943 in words is "two hundred fifty-three million, four hundred twenty-three thousand, nine hundred forty-three".