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1472381 = 11531277
BaseRepresentation
bin101100111011101111101
32202210201122
411213131331
5334104011
651320325
715341441
oct5473575
92683648
101472381
11916249
125b00a5
133c7241
142a4821
151e13db
hex16777d

1472381 has 4 divisors (see below), whose sum is σ = 1474812. Its totient is φ = 1469952.

The previous prime is 1472371. The next prime is 1472389. The reversal of 1472381 is 1832741.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1832741 = 4144701.

It can be written as a sum of positive squares in 2 ways, for example, as 1069156 + 403225 = 1034^2 + 635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1472381 is a prime.

It is a super-2 number, since 2×14723812 = 4335811618322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1472381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1472389) 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, 515 + ... + 1791.

It is an arithmetic number, because the mean of its divisors is an integer number (368703).

21472381 is an apocalyptic number.

It is an amenable number.

1472381 is a deficient number, since it is larger than the sum of its proper divisors (2431).

1472381 is a wasteful number, since it uses less digits than its factorization.

1472381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430.

The product of its digits is 1344, while the sum is 26.

The square root of 1472381 is about 1213.4170758647. The cubic root of 1472381 is about 113.7644927797.

The spelling of 1472381 in words is "one million, four hundred seventy-two thousand, three hundred eighty-one".

Divisors: 1 1153 1277 1472381