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2730053 = 19143687
BaseRepresentation
bin1010011010100001000101
312010200221002
422122201011
51144330203
6134303045
732130224
oct12324105
95120832
102730053
1115a5147
12ab7a85
13747821
14510cbb
1538dd88
hex29a845

2730053 has 4 divisors (see below), whose sum is σ = 2873760. Its totient is φ = 2586348.

The previous prime is 2730041. The next prime is 2730071. The reversal of 2730053 is 3500372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2730053 - 210 = 2729029 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71825 + ... + 71862.

It is an arithmetic number, because the mean of its divisors is an integer number (718440).

22730053 is an apocalyptic number.

It is an amenable number.

2730053 is a deficient number, since it is larger than the sum of its proper divisors (143707).

2730053 is a wasteful number, since it uses less digits than its factorization.

2730053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143706.

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 2730053 is about 1652.2872026376. The cubic root of 2730053 is about 139.7624031200.

The spelling of 2730053 in words is "two million, seven hundred thirty thousand, fifty-three".

Divisors: 1 19 143687 2730053