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253101043 = 1319469311
BaseRepresentation
bin11110001011000…
…00001111110011
3122122020212100201
433011200033303
51004243213133
641040500031
76162215626
oct1705401763
9578225321
10253101043
1111a961618
127091a617
134058a040
1425885dbd
1517347d7d
hexf1603f3

253101043 has 4 divisors (see below), whose sum is σ = 272570368. Its totient is φ = 233631720.

The previous prime is 253101029. The next prime is 253101097. The reversal of 253101043 is 340101352.

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

It is a cyclic number.

It is not a de Polignac number, because 253101043 - 25 = 253101011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253101043.

It is not an unprimeable number, because it can be changed into a prime (253101643) 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, 9734643 + ... + 9734668.

It is an arithmetic number, because the mean of its divisors is an integer number (68142592).

Almost surely, 2253101043 is an apocalyptic number.

253101043 is a deficient number, since it is larger than the sum of its proper divisors (19469325).

253101043 is a wasteful number, since it uses less digits than its factorization.

253101043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19469324.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 253101043 is about 15909.1496630084. The cubic root of 253101043 is about 632.5545416885.

Adding to 253101043 its reverse (340101352), we get a palindrome (593202395).

The spelling of 253101043 in words is "two hundred fifty-three million, one hundred one thousand, forty-three".

Divisors: 1 13 19469311 253101043