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1427999315 = 51289221567
BaseRepresentation
bin101010100011101…
…1000101001010011
310200112000212210112
41111013120221103
510411031434230
6353410551535
750246536211
oct12507305123
93615025715
101427999315
11673083026
1233a2985ab
13199b02c12
14d791dcb1
1585575d95
hex551d8a53

1427999315 has 8 divisors (see below), whose sum is σ = 1714936320. Its totient is φ = 1141508032.

The previous prime is 1427999311. The next prime is 1427999317. The reversal of 1427999315 is 5139997241.

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 1427999315 - 22 = 1427999311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1427999311) 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, 104339 + ... + 117228.

It is an arithmetic number, because the mean of its divisors is an integer number (214367040).

Almost surely, 21427999315 is an apocalyptic number.

1427999315 is a deficient number, since it is larger than the sum of its proper divisors (286937005).

1427999315 is a wasteful number, since it uses less digits than its factorization.

1427999315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222861.

The product of its digits is 612360, while the sum is 50.

The square root of 1427999315 is about 37788.8781918702. The cubic root of 1427999315 is about 1126.0975139729.

The spelling of 1427999315 in words is "one billion, four hundred twenty-seven million, nine hundred ninety-nine thousand, three hundred fifteen".

Divisors: 1 5 1289 6445 221567 1107835 285599863 1427999315