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28614733 = 716572467
BaseRepresentation
bin110110100101…
…0000001001101
31222211210000221
41231022001031
524311132413
62501151341
7465135610
oct155120115
958753027
1028614733
1115174744
1296bb551
135c0b5c4
143b2c177
1527a368d
hex1b4a04d

28614733 has 8 divisors (see below), whose sum is σ = 32735552. Its totient is φ = 24502176.

The previous prime is 28614721. The next prime is 28614743. The reversal of 28614733 is 33741682.

It is a happy number.

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 28614733 - 25 = 28614701 is a prime.

It is a super-2 number, since 2×286147332 = 1637605889322578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28614713) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10366 + ... + 12832.

It is an arithmetic number, because the mean of its divisors is an integer number (4091944).

Almost surely, 228614733 is an apocalyptic number.

It is an amenable number.

28614733 is a deficient number, since it is larger than the sum of its proper divisors (4120819).

28614733 is a wasteful number, since it uses less digits than its factorization.

28614733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131.

The product of its digits is 24192, while the sum is 34.

The square root of 28614733 is about 5349.2740628986. The cubic root of 28614733 is about 305.8650814220.

The spelling of 28614733 in words is "twenty-eight million, six hundred fourteen thousand, seven hundred thirty-three".

Divisors: 1 7 1657 2467 11599 17269 4087819 28614733