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1283272 = 23160409
BaseRepresentation
bin100111001010011001000
32102012022121
410321103020
5312031042
643301024
713623214
oct4712310
92365277
101283272
117a7161
1251a774
1335c143
14255944
151a5367
hex1394c8

1283272 has 8 divisors (see below), whose sum is σ = 2406150. Its totient is φ = 641632.

The previous prime is 1283237. The next prime is 1283297. The reversal of 1283272 is 2723821.

It can be written as a sum of positive squares in only one way, i.e., 1196836 + 86436 = 1094^2 + 294^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80197 + ... + 80212.

21283272 is an apocalyptic number.

It is an amenable number.

1283272 is a deficient number, since it is larger than the sum of its proper divisors (1122878).

1283272 is a wasteful number, since it uses less digits than its factorization.

1283272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160415 (or 160411 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 1283272 is about 1132.8159603395. The cubic root of 1283272 is about 108.6691423443.

The spelling of 1283272 in words is "one million, two hundred eighty-three thousand, two hundred seventy-two".

Divisors: 1 2 4 8 160409 320818 641636 1283272