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1427481 = 321114419
BaseRepresentation
bin101011100100000011001
32200112010200
411130200121
5331134411
650332413
715063516
oct5344031
92615120
101427481
11895540
1258a109
133ac983
1429230d
151d2e56
hex15c819

1427481 has 12 divisors (see below), whose sum is σ = 2249520. Its totient is φ = 865080.

The previous prime is 1427479. The next prime is 1427483. The reversal of 1427481 is 1847241.

It is an interprime number because it is at equal distance from previous prime (1427479) and next prime (1427483).

It is not a de Polignac number, because 1427481 - 21 = 1427479 is a prime.

It is a super-2 number, since 2×14274812 = 4075404010722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1427483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7111 + ... + 7308.

It is an arithmetic number, because the mean of its divisors is an integer number (187460).

21427481 is an apocalyptic number.

1427481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1427481 is a deficient number, since it is larger than the sum of its proper divisors (822039).

1427481 is a wasteful number, since it uses less digits than its factorization.

1427481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14436 (or 14433 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 1427481 is about 1194.7723632559. The cubic root of 1427481 is about 112.5961252501.

It can be divided in two parts, 14 and 27481, that added together give a triangular number (27495 = T234).

The spelling of 1427481 in words is "one million, four hundred twenty-seven thousand, four hundred eighty-one".

Divisors: 1 3 9 11 33 99 14419 43257 129771 158609 475827 1427481