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8146149 = 311317963
BaseRepresentation
bin11111000100110011100101
3120022212102020
4133010303211
54041134044
6450333353
7126145464
oct37046345
916285366
108146149
114664360
12288a259
1318c2b0b
1411209db
15aada19
hex7c4ce5

8146149 has 16 divisors (see below), whose sum is σ = 12232704. Its totient is φ = 4777200.

The previous prime is 8146133. The next prime is 8146169. The reversal of 8146149 is 9416418.

It is not a de Polignac number, because 8146149 - 24 = 8146133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8146109) 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 15 ways as a sum of consecutive naturals, for example, 2959 + ... + 5004.

It is an arithmetic number, because the mean of its divisors is an integer number (764544).

Almost surely, 28146149 is an apocalyptic number.

It is an amenable number.

8146149 is a deficient number, since it is larger than the sum of its proper divisors (4086555).

8146149 is a wasteful number, since it uses less digits than its factorization.

8146149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8008.

The product of its digits is 6912, while the sum is 33.

The square root of 8146149 is about 2854.1459317982. The cubic root of 8146149 is about 201.2105661970.

The spelling of 8146149 in words is "eight million, one hundred forty-six thousand, one hundred forty-nine".

Divisors: 1 3 11 31 33 93 341 1023 7963 23889 87593 246853 262779 740559 2715383 8146149