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3103072 = 25721979
BaseRepresentation
bin1011110101100101100000
312211122121121
423311211200
51243244242
6150302024
735242600
oct13654540
95748547
103103072
11182a425
121057914
1384854b
145aac00
15414667
hex2f5960

3103072 has 36 divisors (see below), whose sum is σ = 7110180. Its totient is φ = 1329216.

The previous prime is 3103063. The next prime is 3103073. The reversal of 3103072 is 2703013.

3103072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 579 + ... + 2557.

It is an arithmetic number, because the mean of its divisors is an integer number (197505).

Almost surely, 23103072 is an apocalyptic number.

3103072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3103072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3555090).

3103072 is an abundant number, since it is smaller than the sum of its proper divisors (4007108).

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

3103072 is a wasteful number, since it uses less digits than its factorization.

3103072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003 (or 1988 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 3103072 is about 1761.5538595229. The cubic root of 3103072 is about 145.8581220084.

Adding to 3103072 its reverse (2703013), we get a palindrome (5806085).

The spelling of 3103072 in words is "three million, one hundred three thousand, seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 98 112 196 224 392 784 1568 1979 3958 7916 13853 15832 27706 31664 55412 63328 96971 110824 193942 221648 387884 443296 775768 1551536 3103072