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1072990 = 25611759
BaseRepresentation
bin100000101111101011110
32000111212101
410011331132
5233313430
634555314
712056152
oct4057536
92014771
101072990
11673176
12438b3a
132b7509
141dd062
15162dca
hex105f5e

1072990 has 16 divisors (see below), whose sum is σ = 1964160. Its totient is φ = 421920.

The previous prime is 1072969. The next prime is 1072991. The reversal of 1072990 is 992701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270 + ... + 1489.

It is an arithmetic number, because the mean of its divisors is an integer number (122760).

21072990 is an apocalyptic number.

1072990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1072990 is a deficient number, since it is larger than the sum of its proper divisors (891170).

1072990 is a wasteful number, since it uses less digits than its factorization.

1072990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 1072990 is about 1035.8523060746. The cubic root of 1072990 is about 102.3760945784.

The spelling of 1072990 in words is "one million, seventy-two thousand, nine hundred ninety".

Divisors: 1 2 5 10 61 122 305 610 1759 3518 8795 17590 107299 214598 536495 1072990