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33872033 = 132639907
BaseRepresentation
bin1000000100110…
…1100010100001
32100201212200202
42001031202201
532132401113
63205554545
7560623166
oct201154241
970655622
1033872033
1118135618
12b415a55
13702c530
1446da06d
152e91258
hex204d8a1

33872033 has 8 divisors (see below), whose sum is σ = 36619968. Its totient is φ = 31144464.

The previous prime is 33872023. The next prime is 33872053. The reversal of 33872033 is 33027833.

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

It is not a de Polignac number, because 33872033 - 26 = 33871969 is a prime.

It is a super-2 number, since 2×338720332 = 2294629239106178, 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 = 33871987 and 33872005.

It is not an unprimeable number, because it can be changed into a prime (33872023) 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, 1535 + ... + 8372.

It is an arithmetic number, because the mean of its divisors is an integer number (4577496).

Almost surely, 233872033 is an apocalyptic number.

It is an amenable number.

33872033 is a deficient number, since it is larger than the sum of its proper divisors (2747935).

33872033 is a wasteful number, since it uses less digits than its factorization.

33872033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10183.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 33872033 is about 5819.9684707050. The cubic root of 33872033 is about 323.5542344455.

Adding to 33872033 its reverse (33027833), we get a palindrome (66899866).

The spelling of 33872033 in words is "thirty-three million, eight hundred seventy-two thousand, thirty-three".

Divisors: 1 13 263 3419 9907 128791 2605541 33872033