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1442744271 = 33196314457
BaseRepresentation
bin101010111111110…
…1000011111001111
310201112210000002000
41111333220133033
510423320304041
6355055003343
750516060343
oct12577503717
93645700060
101442744271
11680434141
12343209553
1319cb96447
14d987b623
15869d9bb6
hex55fe87cf

1442744271 has 32 divisors (see below), whose sum is σ = 2253964800. Its totient is φ = 909558720.

The previous prime is 1442744269. The next prime is 1442744273. The reversal of 1442744271 is 1724472441.

1442744271 is a `hidden beast` number, since 144 + 2 + 7 + 442 + 71 = 666.

It is an interprime number because it is at equal distance from previous prime (1442744269) and next prime (1442744273).

It is not a de Polignac number, because 1442744271 - 21 = 1442744269 is a prime.

It is a super-2 number, since 2×14427442712 = 4163022063006642882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442744273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321475 + ... + 325931.

It is an arithmetic number, because the mean of its divisors is an integer number (70436400).

Almost surely, 21442744271 is an apocalyptic number.

1442744271 is a deficient number, since it is larger than the sum of its proper divisors (811220529).

1442744271 is a wasteful number, since it uses less digits than its factorization.

1442744271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5116 (or 5110 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 1442744271 is about 37983.4736563153. The cubic root of 1442744271 is about 1129.9601288566.

The spelling of 1442744271 in words is "one billion, four hundred forty-two million, seven hundred forty-four thousand, two hundred seventy-one".

Divisors: 1 3 9 19 27 57 171 513 631 1893 4457 5679 11989 13371 17037 35967 40113 84683 107901 120339 254049 323703 762147 2286441 2812367 8437101 25311303 53434973 75933909 160304919 480914757 1442744271