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1270423 = 72112357
BaseRepresentation
bin100110110001010010111
32101112200201
410312022113
5311123143
643121331
713540600
oct4661227
92345621
101270423
11798540
12513247
1335633b
14250da7
151a164d
hex136297

1270423 has 12 divisors (see below), whose sum is σ = 1612872. Its totient is φ = 989520.

The previous prime is 1270421. The next prime is 1270429. The reversal of 1270423 is 3240721.

It is not a de Polignac number, because 1270423 - 21 = 1270421 is a prime.

It is a super-2 number, since 2×12704232 = 3227949197858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1270423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640 + ... + 1717.

It is an arithmetic number, because the mean of its divisors is an integer number (134406).

21270423 is an apocalyptic number.

1270423 is a deficient number, since it is larger than the sum of its proper divisors (342449).

1270423 is a wasteful number, since it uses less digits than its factorization.

1270423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382 (or 2375 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1270423 is about 1127.1304272355. The cubic root of 1270423 is about 108.3052350534.

The spelling of 1270423 in words is "one million, two hundred seventy thousand, four hundred twenty-three".

Divisors: 1 7 11 49 77 539 2357 16499 25927 115493 181489 1270423