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33430085 = 513514309
BaseRepresentation
bin111111110000…
…1101001000101
32022220102110022
41333201221011
532024230320
63152304525
7554102543
oct177415105
968812408
1033430085
1117963577
12b242145
136c06320
144622d93
152e05325
hex1fe1a45

33430085 has 8 divisors (see below), whose sum is σ = 43202040. Its totient is φ = 24686784.

The previous prime is 33430081. The next prime is 33430097. The reversal of 33430085 is 58003433.

It can be written as a sum of positive squares in 4 ways, for example, as 229441 + 33200644 = 479^2 + 5762^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33430085 - 22 = 33430081 is a prime.

It is a super-2 number, since 2×334300852 = 2235141166214450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33430081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257090 + ... + 257219.

It is an arithmetic number, because the mean of its divisors is an integer number (5400255).

Almost surely, 233430085 is an apocalyptic number.

It is an amenable number.

33430085 is a deficient number, since it is larger than the sum of its proper divisors (9771955).

33430085 is a wasteful number, since it uses less digits than its factorization.

33430085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514327.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 33430085 is about 5781.8755607502. The cubic root of 33430085 is about 322.1408697826.

The spelling of 33430085 in words is "thirty-three million, four hundred thirty thousand, eighty-five".

Divisors: 1 5 13 65 514309 2571545 6686017 33430085