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33430164 = 2232785847
BaseRepresentation
bin111111110000…
…1101010010100
32022220102120020
41333201222110
532024231124
63152305140
7554103015
oct177415224
968812506
1033430164
1117963639
12b2421b0
136c06381
14462300c
152e05379
hex1fe1a94

33430164 has 12 divisors (see below), whose sum is σ = 78003744. Its totient is φ = 11143384.

The previous prime is 33430147. The next prime is 33430169. The reversal of 33430164 is 46103433.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×334301643 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33430169) 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, 1392912 + ... + 1392935.

It is an arithmetic number, because the mean of its divisors is an integer number (6500312).

Almost surely, 233430164 is an apocalyptic number.

It is an amenable number.

33430164 is an abundant number, since it is smaller than the sum of its proper divisors (44573580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33430164 is a wasteful number, since it uses less digits than its factorization.

33430164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785854 (or 2785852 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 33430164 is about 5781.8823924393. The cubic root of 33430164 is about 322.1411235371.

Adding to 33430164 its reverse (46103433), we get a palindrome (79533597).

The spelling of 33430164 in words is "thirty-three million, four hundred thirty thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 2785847 5571694 8357541 11143388 16715082 33430164