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33880945 = 57968027
BaseRepresentation
bin1000000100111…
…1101101110001
32100202022220211
42001033231301
532133142240
63210104121
7560661160
oct201175561
970668824
1033880945
111814128a
12b41b041
1370335c7
1446dd3d7
152e93bea
hex204fb71

33880945 has 8 divisors (see below), whose sum is σ = 46465344. Its totient is φ = 23232624.

The previous prime is 33880943. The next prime is 33880963. The reversal of 33880945 is 54908833.

33880945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 33880945 - 21 = 33880943 is a prime.

It is a super-2 number, since 2×338809452 = 2295836868186050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33880898 and 33880907.

It is not an unprimeable number, because it can be changed into a prime (33880943) 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 7 ways as a sum of consecutive naturals, for example, 483979 + ... + 484048.

It is an arithmetic number, because the mean of its divisors is an integer number (5808168).

Almost surely, 233880945 is an apocalyptic number.

33880945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33880945 is a deficient number, since it is larger than the sum of its proper divisors (12584399).

33880945 is an equidigital number, since it uses as much as digits as its factorization.

33880945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968039.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 33880945 is about 5820.7340602367. The cubic root of 33880945 is about 323.5826085172.

The spelling of 33880945 in words is "thirty-three million, eight hundred eighty thousand, nine hundred forty-five".

Divisors: 1 5 7 35 968027 4840135 6776189 33880945