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254235242213 = 1976091286557
BaseRepresentation
bin1110110011000110011…
…0011110111011100101
3220022020002110110012222
43230301212132323211
513131133210222323
6312443303322125
724240120621461
oct3546146367345
9808202413188
10254235242213
1198903191427
1241332a50345
131ac88656984
14c43b0bd4a1
15692ea5a9c8
hex3b3199eee5

254235242213 has 4 divisors (see below), whose sum is σ = 254236726380. Its totient is φ = 254233758048.

The previous prime is 254235242203. The next prime is 254235242279. The reversal of 254235242213 is 312242532452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 186457285249 + 67777956964 = 431807^2 + 260342^2 .

It is a cyclic number.

It is not a de Polignac number, because 254235242213 - 216 = 254235176677 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 (254235242203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445670 + ... + 840887.

It is an arithmetic number, because the mean of its divisors is an integer number (63559181595).

Almost surely, 2254235242213 is an apocalyptic number.

It is an amenable number.

254235242213 is a deficient number, since it is larger than the sum of its proper divisors (1484167).

254235242213 is a wasteful number, since it uses less digits than its factorization.

254235242213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484166.

The product of its digits is 115200, while the sum is 35.

Adding to 254235242213 its reverse (312242532452), we get a palindrome (566477774665).

The spelling of 254235242213 in words is "two hundred fifty-four billion, two hundred thirty-five million, two hundred forty-two thousand, two hundred thirteen".

Divisors: 1 197609 1286557 254235242213