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254700442 = 2924113781
BaseRepresentation
bin11110010111001…
…10101110011010
3122202021010022201
433023212232122
51010200403232
641135040414
76211626613
oct1713465632
9582233281
10254700442
11120854237
127137010a
13409ca029
1425b80c0a
1517561be7
hexf2e6b9a

254700442 has 8 divisors (see below), whose sum is σ = 382119732. Its totient is φ = 127327200.

The previous prime is 254700427. The next prime is 254700449. The reversal of 254700442 is 244007452.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 220255281 + 34445161 = 14841^2 + 5869^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 254700442.

It is not an unprimeable number, because it can be changed into a prime (254700449) 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 3 ways as a sum of consecutive naturals, for example, 11592 + ... + 25372.

Almost surely, 2254700442 is an apocalyptic number.

254700442 is a deficient number, since it is larger than the sum of its proper divisors (127419290).

254700442 is a wasteful number, since it uses less digits than its factorization.

254700442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23024.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 254700442 is about 15959.3371416234. The cubic root of 254700442 is about 633.8841601891.

Adding to 254700442 its reverse (244007452), we get a palindrome (498707894).

The spelling of 254700442 in words is "two hundred fifty-four million, seven hundred thousand, four hundred forty-two".

Divisors: 1 2 9241 13781 18482 27562 127350221 254700442