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1481431 = 71759211
BaseRepresentation
bin101101001101011010111
32210021010211
411221223113
5334401211
651430251
715410020
oct5515327
92707124
101481431
11922026
125b5387
133cb3b3
142a7c47
151e3e21
hex169ad7

1481431 has 16 divisors (see below), whose sum is σ = 1831680. Its totient is φ = 1169280.

The previous prime is 1481413. The next prime is 1481477. The reversal of 1481431 is 1341841.

It is not a de Polignac number, because 1481431 - 213 = 1473239 is a prime.

It is a super-2 number, since 2×14814312 = 4389275615522, which contains 22 as substring.

It is a Duffinian number.

1481431 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6916 + ... + 7126.

It is an arithmetic number, because the mean of its divisors is an integer number (114480).

21481431 is an apocalyptic number.

1481431 is a deficient number, since it is larger than the sum of its proper divisors (350249).

1481431 is a wasteful number, since it uses less digits than its factorization.

1481431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294.

The product of its digits is 384, while the sum is 22.

The square root of 1481431 is about 1217.1405013391. The cubic root of 1481431 is about 113.9971015986.

The spelling of 1481431 in words is "one million, four hundred eighty-one thousand, four hundred thirty-one".

Divisors: 1 7 17 59 119 211 413 1003 1477 3587 7021 12449 25109 87143 211633 1481431