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255371249 = 7149244843
BaseRepresentation
bin11110011100010…
…10011111110001
3122210112012111102
433032022133301
51010333334444
641201254145
76220422410
oct1716123761
9583465442
10255371249
11121172221
1271634355
1340ba3463
1425cb7477
151764584e
hexf38a7f1

255371249 has 8 divisors (see below), whose sum is σ = 293812800. Its totient is φ = 217419696.

The previous prime is 255371243. The next prime is 255371287. The reversal of 255371249 is 942173552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-255371249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255371243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121379 + ... + 123464.

It is an arithmetic number, because the mean of its divisors is an integer number (36726600).

Almost surely, 2255371249 is an apocalyptic number.

It is an amenable number.

255371249 is a deficient number, since it is larger than the sum of its proper divisors (38441551).

255371249 is a wasteful number, since it uses less digits than its factorization.

255371249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244999.

The product of its digits is 75600, while the sum is 38.

The square root of 255371249 is about 15980.3394519641. The cubic root of 255371249 is about 634.4401612925.

The spelling of 255371249 in words is "two hundred fifty-five million, three hundred seventy-one thousand, two hundred forty-nine".

Divisors: 1 7 149 1043 244843 1713901 36481607 255371249