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253240301 = 2111200191
BaseRepresentation
bin11110001100000…
…10001111101101
3122122111221101102
433012002033231
51004312142201
641043452445
76163335626
oct1706021755
9578457342
10253240301
1111aa47206
1270987125
1340608542
14258c0a4d
151737426b
hexf1823ed

253240301 has 4 divisors (see below), whose sum is σ = 254440704. Its totient is φ = 252039900.

The previous prime is 253240297. The next prime is 253240343. The reversal of 253240301 is 103042352.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253240301 - 22 = 253240297 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253240391) 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, 599885 + ... + 600306.

It is an arithmetic number, because the mean of its divisors is an integer number (63610176).

Almost surely, 2253240301 is an apocalyptic number.

It is an amenable number.

253240301 is a deficient number, since it is larger than the sum of its proper divisors (1200403).

253240301 is a wasteful number, since it uses less digits than its factorization.

253240301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200402.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 253240301 is about 15913.5257249926. The cubic root of 253240301 is about 632.6705324258.

Adding to 253240301 its reverse (103042352), we get a palindrome (356282653).

The spelling of 253240301 in words is "two hundred fifty-three million, two hundred forty thousand, three hundred one".

Divisors: 1 211 1200191 253240301