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136281748 = 2234070437
BaseRepresentation
bin10000001111101…
…11111010010100
3100111102211102011
420013313322110
5234342003443
621304554004
73243242611
oct1007677224
9314384364
10136281748
116aa22549
1239782904
1322307ab5
1414157508
15be6eb9d
hex81f7e94

136281748 has 6 divisors (see below), whose sum is σ = 238493066. Its totient is φ = 68140872.

The previous prime is 136281721. The next prime is 136281751. The reversal of 136281748 is 847182631.

It can be written as a sum of positive squares in only one way, i.e., 101566084 + 34715664 = 10078^2 + 5892^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 136281748.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17035215 + ... + 17035222.

Almost surely, 2136281748 is an apocalyptic number.

It is an amenable number.

136281748 is a deficient number, since it is larger than the sum of its proper divisors (102211318).

136281748 is a wasteful number, since it uses less digits than its factorization.

136281748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34070441 (or 34070439 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 136281748 is about 11673.9773856214. The cubic root of 136281748 is about 514.6111974174.

It can be divided in two parts, 13628 and 1748, that added together give a square (15376 = 1242).

The spelling of 136281748 in words is "one hundred thirty-six million, two hundred eighty-one thousand, seven hundred forty-eight".

Divisors: 1 2 4 34070437 68140874 136281748