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72682044 = 2236056837
BaseRepresentation
bin1000101010100…
…00101000111100
312001202122000120
410111100220330
5122101311134
611113454540
71541534001
oct425205074
9161678016
1072682044
1138033106
1220411450
131209a536
14991d8a8
1565aa649
hex4550a3c

72682044 has 12 divisors (see below), whose sum is σ = 169591464. Its totient is φ = 24227344.

The previous prime is 72682031. The next prime is 72682079. The reversal of 72682044 is 44028627.

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

It is a junction number, because it is equal to n+sod(n) for n = 72681996 and 72682014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3028407 + ... + 3028430.

It is an arithmetic number, because the mean of its divisors is an integer number (14132622).

Almost surely, 272682044 is an apocalyptic number.

It is an amenable number.

72682044 is an abundant number, since it is smaller than the sum of its proper divisors (96909420).

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

72682044 is a wasteful number, since it uses less digits than its factorization.

72682044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056844 (or 6056842 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 72682044 is about 8525.3764726257. The cubic root of 72682044 is about 417.3262575625.

The spelling of 72682044 in words is "seventy-two million, six hundred eighty-two thousand, forty-four".

Divisors: 1 2 3 4 6 12 6056837 12113674 18170511 24227348 36341022 72682044