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320545379514 = 23131407818549
BaseRepresentation
bin1001010101000011111…
…11100101010010111010
31010122101100200110001010
410222201333211102322
520222434104121024
6403131223534350
732105261525103
oct4524177452272
91118340613033
10320545379514
11113a40567a98
1252159bba3b6
13242c54b98c9
141172ba333aa
158511258b29
hex4aa1fe54ba

320545379514 has 16 divisors (see below), whose sum is σ = 645984583200. Its totient is φ = 106032822480.

The previous prime is 320545379509. The next prime is 320545379527. The reversal of 320545379514 is 415973545023.

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, 203908489 + ... + 203910060.

It is an arithmetic number, because the mean of its divisors is an integer number (40374036450).

Almost surely, 2320545379514 is an apocalyptic number.

320545379514 is an abundant number, since it is smaller than the sum of its proper divisors (325439203686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320545379514 is a wasteful number, since it uses less digits than its factorization.

320545379514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407818685.

The product of its (nonzero) digits is 2268000, while the sum is 48.

The spelling of 320545379514 in words is "three hundred twenty billion, five hundred forty-five million, three hundred seventy-nine thousand, five hundred fourteen".

Divisors: 1 2 3 6 131 262 393 786 407818549 815637098 1223455647 2446911294 53424229919 106848459838 160272689757 320545379514