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1030988 = 22736821
BaseRepresentation
bin11111011101101001100
31221101020202
43323231030
5230442423
634033032
711522540
oct3735514
91841222
101030988
11644662
12418778
132a136a
141cba20
15155728
hexfbb4c

1030988 has 12 divisors (see below), whose sum is σ = 2062032. Its totient is φ = 441840.

The previous prime is 1030987. The next prime is 1030993. The reversal of 1030988 is 8890301.

It is a happy number.

1030988 is an admirable number.

It is a super-2 number, since 2×10309882 = 2125872512288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1030988.

It is not an unprimeable number, because it can be changed into a prime (1030987) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18383 + ... + 18438.

It is an arithmetic number, because the mean of its divisors is an integer number (171836).

21030988 is an apocalyptic number.

It is an amenable number.

1030988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1030988 is a wasteful number, since it uses less digits than its factorization.

1030988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36832 (or 36830 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1030988 is about 1015.3757925025. The cubic root of 1030988 is about 101.0224437918.

The spelling of 1030988 in words is "one million, thirty thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 28 36821 73642 147284 257747 515494 1030988