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1428126 = 23737919
BaseRepresentation
bin101011100101010011110
32200120000120
411130222132
5331200001
650335410
715065430
oct5345236
92616016
101428126
11895a77
1258a566
133b005b
14292650
151d3236
hex15ca9e

1428126 has 32 divisors (see below), whose sum is σ = 3356160. Its totient is φ = 396576.

The previous prime is 1428113. The next prime is 1428127. The reversal of 1428126 is 6218241.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1428096 and 1428105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1095 + ... + 2013.

It is an arithmetic number, because the mean of its divisors is an integer number (104880).

21428126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1678080).

1428126 is an abundant number, since it is smaller than the sum of its proper divisors (1928034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1428126 is a wasteful number, since it uses less digits than its factorization.

1428126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968.

The product of its digits is 768, while the sum is 24.

The square root of 1428126 is about 1195.0422586670. The cubic root of 1428126 is about 112.6130813579.

The spelling of 1428126 in words is "one million, four hundred twenty-eight thousand, one hundred twenty-six".

Divisors: 1 2 3 6 7 14 21 37 42 74 111 222 259 518 777 919 1554 1838 2757 5514 6433 12866 19299 34003 38598 68006 102009 204018 238021 476042 714063 1428126