Search a number
-
+
1072481 = 4792239
BaseRepresentation
bin100000101110101100001
32000111011112
410011311201
5233304411
634553105
712054524
oct4056541
92014145
101072481
11672853
12438795
132b7207
141dcbbb
15162b8b
hex105d61

1072481 has 4 divisors (see below), whose sum is σ = 1075200. Its totient is φ = 1069764.

The previous prime is 1072471. The next prime is 1072517. The reversal of 1072481 is 1842701.

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 1072481 - 210 = 1071457 is a prime.

It is a super-2 number, since 2×10724812 = 2300430990722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072471) 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, 641 + ... + 1598.

It is an arithmetic number, because the mean of its divisors is an integer number (268800).

21072481 is an apocalyptic number.

It is an amenable number.

1072481 is a deficient number, since it is larger than the sum of its proper divisors (2719).

1072481 is an equidigital number, since it uses as much as digits as its factorization.

1072481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1072481 is about 1035.6065855333. The cubic root of 1072481 is about 102.3599037862.

The spelling of 1072481 in words is "one million, seventy-two thousand, four hundred eighty-one".

Divisors: 1 479 2239 1072481