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1042808 = 231337271
BaseRepresentation
bin11111110100101111000
31221222110112
43332211320
5231332213
634203452
711602154
oct3764570
91858415
101042808
11652528
12423588
132a6860
141d2064
15158ea8
hexfe978

1042808 has 32 divisors (see below), whose sum is σ = 2170560. Its totient is φ = 466560.

The previous prime is 1042799. The next prime is 1042819. The reversal of 1042808 is 8082401.

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, 3713 + ... + 3983.

It is an arithmetic number, because the mean of its divisors is an integer number (67830).

21042808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1085280).

1042808 is an abundant number, since it is smaller than the sum of its proper divisors (1127752).

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

1042808 is a wasteful number, since it uses less digits than its factorization.

1042808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 1042808 is about 1021.1797099434. The cubic root of 1042808 is about 101.4070427853.

The spelling of 1042808 in words is "one million, forty-two thousand, eight hundred eight".

Divisors: 1 2 4 8 13 26 37 52 74 104 148 271 296 481 542 962 1084 1924 2168 3523 3848 7046 10027 14092 20054 28184 40108 80216 130351 260702 521404 1042808