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136131248 = 2411773473
BaseRepresentation
bin10000001110100…
…11001010110000
3100111011011222002
420013103022300
5234322144443
621301433132
73242045051
oct1007231260
9314134862
10136131248
116a92a470
123970b7a8
1322284446
1414118728
15be402b8
hex81d32b0

136131248 has 20 divisors (see below), whose sum is σ = 287732328. Its totient is φ = 61877760.

The previous prime is 136131241. The next prime is 136131263. The reversal of 136131248 is 842131631.

It is a self number, because there is not a number n which added to its sum of digits gives 136131248.

It is not an unprimeable number, because it can be changed into a prime (136131241) by changing a digit.

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, 386561 + ... + 386912.

Almost surely, 2136131248 is an apocalyptic number.

It is an amenable number.

136131248 is an abundant number, since it is smaller than the sum of its proper divisors (151601080).

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

136131248 is a wasteful number, since it uses less digits than its factorization.

136131248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773492 (or 773486 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 136131248 is about 11667.5296442735. The cubic root of 136131248 is about 514.4216941430.

Adding to 136131248 its reverse (842131631), we get a palindrome (978262879).

The spelling of 136131248 in words is "one hundred thirty-six million, one hundred thirty-one thousand, two hundred forty-eight".

Divisors: 1 2 4 8 11 16 22 44 88 176 773473 1546946 3093892 6187784 8508203 12375568 17016406 34032812 68065624 136131248