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136447227 = 3371937997
BaseRepresentation
bin10000010001000…
…00010011111011
3100111202020102000
420020200103323
5234412302402
621312312043
73244532220
oct1010402373
9314666360
10136447227
1170025904
1239842623
1322365207
141419b947
15bea3c1c
hex82204fb

136447227 has 32 divisors (see below), whose sum is σ = 243187200. Its totient is φ = 73864224.

The previous prime is 136447193. The next prime is 136447243. The reversal of 136447227 is 722744631.

136447227 is a `hidden beast` number, since 1 + 3 + 644 + 7 + 2 + 2 + 7 = 666.

It is not a de Polignac number, because 136447227 - 26 = 136447163 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136447191 and 136447200.

It is not an unprimeable number, because it can be changed into a prime (136447277) 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 31 ways as a sum of consecutive naturals, for example, 15408 + ... + 22589.

It is an arithmetic number, because the mean of its divisors is an integer number (7599600).

Almost surely, 2136447227 is an apocalyptic number.

136447227 is a deficient number, since it is larger than the sum of its proper divisors (106739973).

136447227 is a wasteful number, since it uses less digits than its factorization.

136447227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38032 (or 38026 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 136447227 is about 11681.0627513082. The cubic root of 136447227 is about 514.8194006522.

The spelling of 136447227 in words is "one hundred thirty-six million, four hundred forty-seven thousand, two hundred twenty-seven".

Divisors: 1 3 7 9 19 21 27 57 63 133 171 189 399 513 1197 3591 37997 113991 265979 341973 721943 797937 1025919 2165829 2393811 5053601 6497487 7181433 15160803 19492461 45482409 136447227