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4985281 = 7712183
BaseRepresentation
bin10011000001000111000001
3100101021112001
4103001013001
52234012111
6254504001
760242230
oct23010701
910337461
104985281
1128a5574
121805001
131057192
1493ab17
156871c1
hex4c11c1

4985281 has 4 divisors (see below), whose sum is σ = 5697472. Its totient is φ = 4273092.

The previous prime is 4985263. The next prime is 4985287. The reversal of 4985281 is 1825894.

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 not a de Polignac number, because 4985281 - 25 = 4985249 is a prime.

It is a super-2 number, since 2×49852812 = 49706053297922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4985281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4985287) 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, 356085 + ... + 356098.

It is an arithmetic number, because the mean of its divisors is an integer number (1424368).

Almost surely, 24985281 is an apocalyptic number.

It is an amenable number.

4985281 is a deficient number, since it is larger than the sum of its proper divisors (712191).

4985281 is an equidigital number, since it uses as much as digits as its factorization.

4985281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712190.

The product of its digits is 23040, while the sum is 37.

The square root of 4985281 is about 2232.7742832629. The cubic root of 4985281 is about 170.8296355072.

The spelling of 4985281 in words is "four million, nine hundred eighty-five thousand, two hundred eighty-one".

Divisors: 1 7 712183 4985281