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32840989 = 130725127
BaseRepresentation
bin111110101000…
…1110100011101
32021210111100221
41331101310131
531401402424
63131521341
7546100216
oct175216435
967714327
1032840989
11175a0a15
12abb9251
136a5b14c
14450c40d
152d3a9e4
hex1f51d1d

32840989 has 4 divisors (see below), whose sum is σ = 32867424. Its totient is φ = 32814556.

The previous prime is 32840981. The next prime is 32841001. The reversal of 32840989 is 98904823.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32840989 - 23 = 32840981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32840981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11257 + ... + 13870.

It is an arithmetic number, because the mean of its divisors is an integer number (8216856).

Almost surely, 232840989 is an apocalyptic number.

It is an amenable number.

32840989 is a deficient number, since it is larger than the sum of its proper divisors (26435).

32840989 is a wasteful number, since it uses less digits than its factorization.

32840989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26434.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 32840989 is about 5730.7058029531. The cubic root of 32840989 is about 320.2374182093.

The spelling of 32840989 in words is "thirty-two million, eight hundred forty thousand, nine hundred eighty-nine".

Divisors: 1 1307 25127 32840989