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2721068 = 227213883
BaseRepresentation
bin1010011000010100101100
312010020121022
422120110230
51144033233
6134153312
732062100
oct12302454
95106538
102721068
111599419
12ab2838
137436cc
1450b900
1538b398
hex29852c

2721068 has 18 divisors (see below), whose sum is σ = 5539716. Its totient is φ = 1166088.

The previous prime is 2721067. The next prime is 2721109. The reversal of 2721068 is 8601272.

It is a super-2 number, since 2×27210682 = 14808422121248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2721067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6746 + ... + 7137.

It is an arithmetic number, because the mean of its divisors is an integer number (307762).

22721068 is an apocalyptic number.

2721068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2721068 is an abundant number, since it is smaller than the sum of its proper divisors (2818648).

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

2721068 is a wasteful number, since it uses less digits than its factorization.

2721068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13901 (or 13892 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2721068 is about 1649.5660035294. The cubic root of 2721068 is about 139.6089084990.

The spelling of 2721068 in words is "two million, seven hundred twenty-one thousand, sixty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 13883 27766 55532 97181 194362 388724 680267 1360534 2721068