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6914131309 = 29415815081
BaseRepresentation
bin1100111000001110…
…10100010101101101
3122211212011021002101
412130013110111231
5103130004200214
63102025455101
7333224101141
oct63407242555
918755137071
106914131309
112a28935208
12140b641491
1386259c577
144983a7221
152a7006774
hex19c1d456d

6914131309 has 8 divisors (see below), whose sum is σ = 7327003320. Its totient is φ = 6512889600.

The previous prime is 6914131307. The next prime is 6914131313. The reversal of 6914131309 is 9031314196.

It can be written as a sum of positive squares in 4 ways, for example, as 123876900 + 6790254409 = 11130^2 + 82403^2 .

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

It is not a de Polignac number, because 6914131309 - 21 = 6914131307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6914131303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2906352 + ... + 2908729.

It is an arithmetic number, because the mean of its divisors is an integer number (915875415).

Almost surely, 26914131309 is an apocalyptic number.

It is an amenable number.

6914131309 is a deficient number, since it is larger than the sum of its proper divisors (412872011).

6914131309 is a wasteful number, since it uses less digits than its factorization.

6914131309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815151.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 6914131309 is about 83151.2556068758. The cubic root of 6914131309 is about 1905.0770317176.

The spelling of 6914131309 in words is "six billion, nine hundred fourteen million, one hundred thirty-one thousand, three hundred nine".

Divisors: 1 29 41 1189 5815081 168637349 238418321 6914131309