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2750013 = 32743651
BaseRepresentation
bin1010011111011000111101
312011201022100
422133120331
51201000023
6134535313
732242350
oct12373075
95151270
102750013
111609142
12b07539
13753936
14518297
15394c43
hex29f63d

2750013 has 12 divisors (see below), whose sum is σ = 4539808. Its totient is φ = 1571400.

The previous prime is 2749991. The next prime is 2750021. The reversal of 2750013 is 3100572.

It is not a de Polignac number, because 2750013 - 213 = 2741821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2750053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21763 + ... + 21888.

22750013 is an apocalyptic number.

It is an amenable number.

2750013 is a deficient number, since it is larger than the sum of its proper divisors (1789795).

2750013 is a wasteful number, since it uses less digits than its factorization.

2750013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43664 (or 43661 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 2750013 is about 1658.3163148205. The cubic root of 2750013 is about 140.1021872992.

Adding to 2750013 its reverse (3100572), we get a palindrome (5850585).

The spelling of 2750013 in words is "two million, seven hundred fifty thousand, thirteen".

Divisors: 1 3 7 9 21 63 43651 130953 305557 392859 916671 2750013