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2013637493 = 72331234603
BaseRepresentation
bin111100000000101…
…1010101101110101
312012100000101100102
41320001122231311
513110442344433
6531451123445
7100620431150
oct17001325565
95170011312
102013637493
1194371171a
12482443585
1326124079a
14151608c97
15bbba84e8
hex7805ab75

2013637493 has 8 divisors (see below), whose sum is σ = 2311178688. Its totient is φ = 1718565984.

The previous prime is 2013637463. The next prime is 2013637501. The reversal of 2013637493 is 3947363102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2013637493 - 214 = 2013621109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013637433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615671 + ... + 618932.

It is an arithmetic number, because the mean of its divisors is an integer number (288897336).

Almost surely, 22013637493 is an apocalyptic number.

It is an amenable number.

2013637493 is a deficient number, since it is larger than the sum of its proper divisors (297541195).

2013637493 is a wasteful number, since it uses less digits than its factorization.

2013637493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234843.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 2013637493 is about 44873.5723226935. The cubic root of 2013637493 is about 1262.7782595889.

The spelling of 2013637493 in words is "two billion, thirteen million, six hundred thirty-seven thousand, four hundred ninety-three".

Divisors: 1 7 233 1631 1234603 8642221 287662499 2013637493