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32428149 = 3134361317
BaseRepresentation
bin111101110110…
…1000001110101
32021000112001120
41323231001311
531300200044
63115014153
7542430465
oct173550165
967015046
1032428149
1117339826
12aa3a359
136945270
144441ba5
152ca8519
hex1eed075

32428149 has 32 divisors (see below), whose sum is σ = 48580224. Its totient is φ = 19111680.

The previous prime is 32428147. The next prime is 32428153. The reversal of 32428149 is 94182423.

It is not a de Polignac number, because 32428149 - 21 = 32428147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32428147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102139 + ... + 102455.

It is an arithmetic number, because the mean of its divisors is an integer number (1518132).

Almost surely, 232428149 is an apocalyptic number.

32428149 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

32428149 is a deficient number, since it is larger than the sum of its proper divisors (16152075).

32428149 is a wasteful number, since it uses less digits than its factorization.

32428149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437.

The product of its digits is 13824, while the sum is 33.

The square root of 32428149 is about 5694.5718890888. The cubic root of 32428149 is about 318.8898674139.

The spelling of 32428149 in words is "thirty-two million, four hundred twenty-eight thousand, one hundred forty-nine".

Divisors: 1 3 13 39 43 61 129 183 317 559 793 951 1677 2379 2623 4121 7869 12363 13631 19337 34099 40893 58011 102297 177203 251381 531609 754143 831491 2494473 10809383 32428149