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3072481 is a prime number
BaseRepresentation
bin1011101110000111100001
312210002122121
423232013201
51241304411
6145504241
735054446
oct13560741
95702577
103072481
111809445
121042081
13837649
1459d9cd
1540a571
hex2ee1e1

3072481 has 2 divisors, whose sum is σ = 3072482. Its totient is φ = 3072480.

The previous prime is 3072473. The next prime is 3072523. The reversal of 3072481 is 1842703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2496400 + 576081 = 1580^2 + 759^2 .

It is an emirp because it is prime and its reverse (1842703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3072481 - 23 = 3072473 is a prime.

It is a super-2 number, since 2×30724812 = 18880278990722, which contains 22 as substring.

3072481 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3072431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1536240 + 1536241.

It is an arithmetic number, because the mean of its divisors is an integer number (1536241).

Almost surely, 23072481 is an apocalyptic number.

It is an amenable number.

3072481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3072481 is an equidigital number, since it uses as much as digits as its factorization.

3072481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 3072481 is about 1752.8493945573. The cubic root of 3072481 is about 145.3772341400.

It can be divided in two parts, 3072 and 481, that added together give a palindrome (3553).

The spelling of 3072481 in words is "three million, seventy-two thousand, four hundred eighty-one".