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1361481 = 31141257
BaseRepresentation
bin101001100011001001001
32120011121020
411030121021
5322031411
645103053
714400222
oct5143111
92504536
101361481
1184a9a0
12557a89
13388914
14276249
151bd606
hex14c649

1361481 has 8 divisors (see below), whose sum is σ = 1980384. Its totient is φ = 825120.

The previous prime is 1361471. The next prime is 1361491. The reversal of 1361481 is 1841631.

It is an interprime number because it is at equal distance from previous prime (1361471) and next prime (1361491).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1361481 - 26 = 1361417 is a prime.

It is a super-2 number, since 2×13614812 = 3707261026722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1361401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20596 + ... + 20661.

It is an arithmetic number, because the mean of its divisors is an integer number (247548).

21361481 is an apocalyptic number.

1361481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1361481 is a deficient number, since it is larger than the sum of its proper divisors (618903).

1361481 is a wasteful number, since it uses less digits than its factorization.

1361481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41271.

The product of its digits is 576, while the sum is 24.

The square root of 1361481 is about 1166.8251797077. The cubic root of 1361481 is about 110.8333673783.

It can be divided in two parts, 13614 and 81, that added together give a triangular number (13695 = T165).

The spelling of 1361481 in words is "one million, three hundred sixty-one thousand, four hundred eighty-one".

Divisors: 1 3 11 33 41257 123771 453827 1361481