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1072040 = 23526801
BaseRepresentation
bin100000101101110101000
32000110120012
410011232220
5233301130
634551052
712053324
oct4055650
92013505
101072040
11672492
12438488
132b6c58
141dc984
15162995
hex105ba8

1072040 has 16 divisors (see below), whose sum is σ = 2412180. Its totient is φ = 428800.

The previous prime is 1072039. The next prime is 1072103. The reversal of 1072040 is 402701.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1044484 + 27556 = 1022^2 + 166^2 .

It is a super-2 number, since 2×10720402 = 2298539523200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13361 + ... + 13440.

21072040 is an apocalyptic number.

1072040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1072040 is an abundant number, since it is smaller than the sum of its proper divisors (1340140).

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

1072040 is a wasteful number, since it uses less digits than its factorization.

1072040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26812 (or 26808 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 1072040 is about 1035.3936449486. The cubic root of 1072040 is about 102.3458718652.

Adding to 1072040 its reverse (402701), we get a palindrome (1474741).

The spelling of 1072040 in words is "one million, seventy-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 26801 53602 107204 134005 214408 268010 536020 1072040