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2171614385 = 5676482431
BaseRepresentation
bin1000000101110000…
…0011010010110001
312121100021102220102
42001130003102301
513421413130020
6555253122145
7104546263163
oct20134032261
95540242812
102171614385
11a14902036
12507329355
13287ba3435
141685ac933
15ca9b1475
hex817034b1

2171614385 has 8 divisors (see below), whose sum is σ = 2644832256. Its totient is φ = 1711361520.

The previous prime is 2171614381. The next prime is 2171614399. The reversal of 2171614385 is 5834161712.

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

It is not a de Polignac number, because 2171614385 - 22 = 2171614381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2171614381) 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, 3240881 + ... + 3241550.

It is an arithmetic number, because the mean of its divisors is an integer number (330604032).

Almost surely, 22171614385 is an apocalyptic number.

It is an amenable number.

2171614385 is a deficient number, since it is larger than the sum of its proper divisors (473217871).

2171614385 is an equidigital number, since it uses as much as digits as its factorization.

2171614385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6482503.

The product of its digits is 40320, while the sum is 38.

The square root of 2171614385 is about 46600.5835263895. The cubic root of 2171614385 is about 1294.9735657459.

The spelling of 2171614385 in words is "two billion, one hundred seventy-one million, six hundred fourteen thousand, three hundred eighty-five".

Divisors: 1 5 67 335 6482431 32412155 434322877 2171614385