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28629472 = 257112601
BaseRepresentation
bin110110100110…
…1100111100000
31222212112020211
41231031213200
524312120342
62501343504
7465226564
oct155154740
958775224
1028629472
1115184823
129707b94
135c15221
143b336a4
1527a7c17
hex1b4d9e0

28629472 has 24 divisors (see below), whose sum is σ = 57162672. Its totient is φ = 14112000.

The previous prime is 28629451. The next prime is 28629481. The reversal of 28629472 is 27492682.

It is a congruent number.

It is an unprimeable number.

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, 4029 + ... + 8572.

It is an arithmetic number, because the mean of its divisors is an integer number (2381778).

Almost surely, 228629472 is an apocalyptic number.

It is an amenable number.

28629472 is a deficient number, since it is larger than the sum of its proper divisors (28533200).

28629472 is a wasteful number, since it uses less digits than its factorization.

28629472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12682 (or 12674 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 28629472 is about 5350.6515491106. The cubic root of 28629472 is about 305.9175878427.

The spelling of 28629472 in words is "twenty-eight million, six hundred twenty-nine thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 32 71 142 284 568 1136 2272 12601 25202 50404 100808 201616 403232 894671 1789342 3578684 7157368 14314736 28629472