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33872073 = 373154667
BaseRepresentation
bin1000000100110…
…1100011001001
32100201212202020
42001031203021
532132401243
63205555053
7560623254
oct201154311
970655666
1033872073
1118135654
12b415a89
13702c561
1446da09b
152e91283
hex204d8c9

33872073 has 8 divisors (see below), whose sum is σ = 45781728. Its totient is φ = 22271904.

The previous prime is 33872063. The next prime is 33872093. The reversal of 33872073 is 37027833.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2k-33872073 is a prime.

It is a super-2 number, since 2×338720732 = 2294634658634658, which contains 22 as substring.

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, 77115 + ... + 77552.

It is an arithmetic number, because the mean of its divisors is an integer number (5722716).

Almost surely, 233872073 is an apocalyptic number.

It is an amenable number.

33872073 is a deficient number, since it is larger than the sum of its proper divisors (11909655).

33872073 is a wasteful number, since it uses less digits than its factorization.

33872073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154743.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 33872073 is about 5819.9719071487. The cubic root of 33872073 is about 323.5543618088.

It can be divided in two parts, 3387 and 2073, that added together give a triangular number (5460 = T104).

The spelling of 33872073 in words is "thirty-three million, eight hundred seventy-two thousand, seventy-three".

Divisors: 1 3 73 219 154667 464001 11290691 33872073