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28620376 = 2316212207
BaseRepresentation
bin110110100101…
…1011001011000
31222212001202221
41231023121120
524311323001
62501233424
7465161221
oct155133130
958761687
1028620376
1115178a04
129702874
135c11045
143b30248
1527a51a1
hex1b4b658

28620376 has 16 divisors (see below), whose sum is σ = 53720640. Its totient is φ = 14294880.

The previous prime is 28620373. The next prime is 28620377. The reversal of 28620376 is 67302682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28620373) 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 3 ways as a sum of consecutive naturals, for example, 11865 + ... + 14071.

It is an arithmetic number, because the mean of its divisors is an integer number (3357540).

Almost surely, 228620376 is an apocalyptic number.

It is an amenable number.

28620376 is a deficient number, since it is larger than the sum of its proper divisors (25100264).

28620376 is a wasteful number, since it uses less digits than its factorization.

28620376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834 (or 3830 counting only the distinct ones).

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

The square root of 28620376 is about 5349.8014916443. The cubic root of 28620376 is about 305.8851862541.

The spelling of 28620376 in words is "twenty-eight million, six hundred twenty thousand, three hundred seventy-six".

Divisors: 1 2 4 8 1621 2207 3242 4414 6484 8828 12968 17656 3577547 7155094 14310188 28620376