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269728090 = 2526972809
BaseRepresentation
bin10000000100111…
…011100101011010
3200210112121101021
4100010323211122
51023022244330
642433113054
76453436162
oct2004734532
9623477337
10269728090
11129288785
12763b878a
1343b5c128
1427b735a2
1518a2e67a
hex1013b95a

269728090 has 8 divisors (see below), whose sum is σ = 485510580. Its totient is φ = 107891232.

The previous prime is 269728087. The next prime is 269728091. The reversal of 269728090 is 90827962.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 267616881 + 2111209 = 16359^2 + 1453^2 .

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

It is not an unprimeable number, because it can be changed into a prime (269728091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13486395 + ... + 13486414.

Almost surely, 2269728090 is an apocalyptic number.

269728090 is a deficient number, since it is larger than the sum of its proper divisors (215782490).

269728090 is a wasteful number, since it uses less digits than its factorization.

269728090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26972816.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 269728090 is about 16423.4006831716. The cubic root of 269728090 is about 646.1133666026.

The spelling of 269728090 in words is "two hundred sixty-nine million, seven hundred twenty-eight thousand, ninety".

Divisors: 1 2 5 10 26972809 53945618 134864045 269728090