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2730680 = 235193593
BaseRepresentation
bin1010011010101010111000
312010201210022
422122222320
51144340210
6134310012
732132111
oct12325270
95121708
102730680
1115a5667
12ab8308
13747bb4
14511208
1538e155
hex29aab8

2730680 has 32 divisors (see below), whose sum is σ = 6469200. Its totient is φ = 1034496.

The previous prime is 2730677. The next prime is 2730683. The reversal of 2730680 is 860372.

2730680 = T14 + T15 + ... + T253.

2730680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2730677) and next prime (2730683).

It is a super-2 number, since 2×27306802 = 14913226524800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730683) 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, 1037 + ... + 2556.

22730680 is an apocalyptic number.

2730680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2730680 is an abundant number, since it is smaller than the sum of its proper divisors (3738520).

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

2730680 is a wasteful number, since it uses less digits than its factorization.

2730680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623 (or 3619 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2730680 is about 1652.4769287346. The cubic root of 2730680 is about 139.7731018524.

The spelling of 2730680 in words is "two million, seven hundred thirty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 3593 7186 14372 17965 28744 35930 68267 71860 136534 143720 273068 341335 546136 682670 1365340 2730680