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3111072 = 253231409
BaseRepresentation
bin1011110111100010100000
312212001120220
423313202200
51244023242
6150403040
735305116
oct13674240
95761526
103111072
111835438
121060480
1384c093
145adab6
15416bec
hex2f78a0

3111072 has 48 divisors (see below), whose sum is σ = 8527680. Its totient is φ = 991232.

The previous prime is 3111037. The next prime is 3111077. The reversal of 3111072 is 2701113.

3111072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (3111077) 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 7 ways as a sum of consecutive naturals, for example, 1504 + ... + 2912.

It is an arithmetic number, because the mean of its divisors is an integer number (177660).

Almost surely, 23111072 is an apocalyptic number.

3111072 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 3111072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4263840).

3111072 is an abundant number, since it is smaller than the sum of its proper divisors (5416608).

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

3111072 is a wasteful number, since it uses less digits than its factorization.

3111072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445 (or 1437 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 3111072 is about 1763.8231203837. The cubic root of 3111072 is about 145.9833595847.

Adding to 3111072 its reverse (2701113), we get a palindrome (5812185).

The spelling of 3111072 in words is "three million, one hundred eleven thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 69 92 96 138 184 276 368 552 736 1104 1409 2208 2818 4227 5636 8454 11272 16908 22544 32407 33816 45088 64814 67632 97221 129628 135264 194442 259256 388884 518512 777768 1037024 1555536 3111072