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254110421 = 887286483
BaseRepresentation
bin11110010010101…
…10101011010101
3122201011010222002
433021112223111
51010023013141
641114245045
76203621465
oct1711265325
9581133862
10254110421
11120490a14
1271126785
13408515c6
1425a69ba5
1517496e9b
hexf256ad5

254110421 has 4 divisors (see below), whose sum is σ = 254397792. Its totient is φ = 253823052.

The previous prime is 254110399. The next prime is 254110453. The reversal of 254110421 is 124011452.

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 a de Polignac number, because none of the positive numbers 2k-254110421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254110393 and 254110402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254110471) 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, 142355 + ... + 144128.

It is an arithmetic number, because the mean of its divisors is an integer number (63599448).

Almost surely, 2254110421 is an apocalyptic number.

It is an amenable number.

254110421 is a deficient number, since it is larger than the sum of its proper divisors (287371).

254110421 is an equidigital number, since it uses as much as digits as its factorization.

254110421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287370.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 254110421 is about 15940.8412889659. The cubic root of 254110421 is about 633.3943113649.

Adding to 254110421 its reverse (124011452), we get a palindrome (378121873).

The spelling of 254110421 in words is "two hundred fifty-four million, one hundred ten thousand, four hundred twenty-one".

Divisors: 1 887 286483 254110421