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252777253 = 2971293419
BaseRepresentation
bin11110001000100…
…01001100100101
3122121122102012111
433010101030211
51004202333003
641025521021
76156366631
oct1704211445
9577572174
10252777253
1111a760323
12707a3171
13404a5851
14257dddc1
15172d1e6d
hexf111325

252777253 has 16 divisors (see below), whose sum is σ = 266716800. Its totient is φ = 239229760.

The previous prime is 252777227. The next prime is 252777269. The reversal of 252777253 is 352777252.

It is a cyclic number.

It is not a de Polignac number, because 252777253 - 213 = 252769061 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 (252777953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603078 + ... + 603496.

It is an arithmetic number, because the mean of its divisors is an integer number (16669800).

Almost surely, 2252777253 is an apocalyptic number.

It is an amenable number.

252777253 is a deficient number, since it is larger than the sum of its proper divisors (13939547).

252777253 is a wasteful number, since it uses less digits than its factorization.

252777253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812.

The product of its digits is 205800, while the sum is 40.

The square root of 252777253 is about 15898.9701867762. The cubic root of 252777253 is about 632.2846860424.

Subtracting 252777253 from its reverse (352777252), we obtain a palindrome (99999999).

The spelling of 252777253 in words is "two hundred fifty-two million, seven hundred seventy-seven thousand, two hundred fifty-three".

Divisors: 1 29 71 293 419 2059 8497 12151 20803 29749 122767 603287 862721 3560243 8716457 252777253