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270331520 = 275422393
BaseRepresentation
bin10000000111001…
…110111010000000
3200211200021010112
4100013032322000
51023201102040
642454050452
76461531354
oct2007167200
9624607115
10270331520
11129660088
1276649a28
13440109a4
1427c8d464
1518aed365
hex101cee80

270331520 has 32 divisors (see below), whose sum is σ = 646262820. Its totient is φ = 108132352.

The previous prime is 270331511. The next prime is 270331543. The reversal of 270331520 is 25133072.

It can be written as a sum of positive squares in 2 ways, for example, as 219750976 + 50580544 = 14824^2 + 7112^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210557 + ... + 211836.

Almost surely, 2270331520 is an apocalyptic number.

270331520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

270331520 is an abundant number, since it is smaller than the sum of its proper divisors (375931300).

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

270331520 is an equidigital number, since it uses as much as digits as its factorization.

270331520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422412 (or 422400 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 270331520 is about 16441.7614628117. The cubic root of 270331520 is about 646.5948314768.

Adding to 270331520 its reverse (25133072), we get a palindrome (295464592).

The spelling of 270331520 in words is "two hundred seventy million, three hundred thirty-one thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 422393 844786 1689572 2111965 3379144 4223930 6758288 8447860 13516576 16895720 27033152 33791440 54066304 67582880 135165760 270331520