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321381126485 = 5325371975481
BaseRepresentation
bin1001010110100111100…
…11101101000101010101
31010201112121021210100122
410223103303231011111
520231142032021420
6403350200521325
732135060334146
oct4532363550525
91121477253318
10321381126485
1111432a2a4071
1252351a80245
13243c96a7543
14117aaa25acd
15855e7e2725
hex4ad3ced155

321381126485 has 8 divisors (see below), whose sum is σ = 385669399896. Its totient is φ = 257096869120.

The previous prime is 321381126401. The next prime is 321381126559. The reversal of 321381126485 is 584621183123.

It can be written as a sum of positive squares in 4 ways, for example, as 9630870769 + 311750255716 = 98137^2 + 558346^2 .

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

It is not a de Polignac number, because 321381126485 - 212 = 321381122389 is a prime.

It is a super-3 number, since 3×3213811264853 (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825056 + ... + 1150425.

It is an arithmetic number, because the mean of its divisors is an integer number (48208674987).

Almost surely, 2321381126485 is an apocalyptic number.

It is an amenable number.

321381126485 is a deficient number, since it is larger than the sum of its proper divisors (64288273411).

321381126485 is a wasteful number, since it uses less digits than its factorization.

321381126485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008023.

The product of its digits is 276480, while the sum is 44.

The spelling of 321381126485 in words is "three hundred twenty-one billion, three hundred eighty-one million, one hundred twenty-six thousand, four hundred eighty-five".

Divisors: 1 5 32537 162685 1975481 9877405 64276225297 321381126485