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1290126 = 23534057
BaseRepresentation
bin100111010111110001110
32102112201110
410322332032
5312241001
643352450
713652205
oct4727616
92375643
101290126
11801322
12522726
133622b6
1425823c
151a73d6
hex13af8e

1290126 has 16 divisors (see below), whose sum is σ = 2629584. Its totient is φ = 421824.

The previous prime is 1290109. The next prime is 1290131. The reversal of 1290126 is 6210921.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1711 + ... + 2346.

It is an arithmetic number, because the mean of its divisors is an integer number (164349).

21290126 is an apocalyptic number.

1290126 is an abundant number, since it is smaller than the sum of its proper divisors (1339458).

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

1290126 is a wasteful number, since it uses less digits than its factorization.

1290126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1290126 is about 1135.8371362128. The cubic root of 1290126 is about 108.8622674674.

The spelling of 1290126 in words is "one million, two hundred ninety thousand, one hundred twenty-six".

Divisors: 1 2 3 6 53 106 159 318 4057 8114 12171 24342 215021 430042 645063 1290126