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2289749631 = 313173339373
BaseRepresentation
bin1000100001111010…
…1100111001111111
312220120120022222220
42020132230321333
514142133442011
61015113140423
7110512356621
oct21036547177
95816508886
102289749631
11a7555a874
1253a9ba713
132a64c6650
1417a160c11
15d6049506
hex887ace7f

2289749631 has 16 divisors (see below), whose sum is σ = 3306860256. Its totient is φ = 1400927616.

The previous prime is 2289749611. The next prime is 2289749633. The reversal of 2289749631 is 1369479822.

It is not a de Polignac number, because 2289749631 - 213 = 2289741439 is a prime.

It is a super-2 number, since 2×22897496312 = 10485906745329272322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289749633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162940 + ... + 176433.

It is an arithmetic number, because the mean of its divisors is an integer number (206678766).

Almost surely, 22289749631 is an apocalyptic number.

2289749631 is a deficient number, since it is larger than the sum of its proper divisors (1017110625).

2289749631 is a wasteful number, since it uses less digits than its factorization.

2289749631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339562.

The product of its digits is 1306368, while the sum is 51.

The square root of 2289749631 is about 47851.3284141621. The cubic root of 2289749631 is about 1318.0422522017.

The spelling of 2289749631 in words is "two billion, two hundred eighty-nine million, seven hundred forty-nine thousand, six hundred thirty-one".

Divisors: 1 3 13 39 173 519 2249 6747 339373 1018119 4411849 13235547 58711529 176134587 763249877 2289749631