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11432109 = 3131743401
BaseRepresentation
bin101011100111…
…000010101101
3210111210220110
4223213002231
510411311414
61045010233
7166112523
oct53470255
923453813
1011432109
1164a9127
1239b3979
1324a3680
141738313
15100c459
hexae70ad

11432109 has 32 divisors (see below), whose sum is σ = 17829504. Its totient is φ = 6451200.

The previous prime is 11432093. The next prime is 11432189. The reversal of 11432109 is 90123411.

It is not a de Polignac number, because 11432109 - 24 = 11432093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11432189) 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 31 ways as a sum of consecutive naturals, for example, 28309 + ... + 28709.

It is an arithmetic number, because the mean of its divisors is an integer number (557172).

Almost surely, 211432109 is an apocalyptic number.

It is an amenable number.

11432109 is a deficient number, since it is larger than the sum of its proper divisors (6397395).

11432109 is a wasteful number, since it uses less digits than its factorization.

11432109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 11432109 is about 3381.1401923020. The cubic root of 11432109 is about 225.2728147547.

It can be divided in two parts, 114 and 32109, that added together give a palindrome (32223).

The spelling of 11432109 in words is "eleven million, four hundred thirty-two thousand, one hundred nine".

Divisors: 1 3 13 17 39 43 51 129 221 401 559 663 731 1203 1677 2193 5213 6817 9503 15639 17243 20451 28509 51729 88621 224159 265863 293131 672477 879393 3810703 11432109