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28626966 = 233530129
BaseRepresentation
bin110110100110…
…1000000010110
31222212101211000
41231031000112
524312030331
62501324130
7465216354
oct155150026
958771730
1028626966
1115182955
129706646
135c14044
143b327d4
1527a70e6
hex1b4d016

28626966 has 16 divisors (see below), whose sum is σ = 63615600. Its totient is φ = 9542304.

The previous prime is 28626953. The next prime is 28626967. The reversal of 28626966 is 66962682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28626967) 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, 265011 + ... + 265118.

It is an arithmetic number, because the mean of its divisors is an integer number (3975975).

Almost surely, 228626966 is an apocalyptic number.

28626966 is an abundant number, since it is smaller than the sum of its proper divisors (34988634).

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

28626966 is a wasteful number, since it uses less digits than its factorization.

28626966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530140 (or 530134 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 28626966 is about 5350.4173668977. The cubic root of 28626966 is about 305.9086617048.

It can be divided in two parts, 28626 and 966, that added together give a palindrome (29592).

The spelling of 28626966 in words is "twenty-eight million, six hundred twenty-six thousand, nine hundred sixty-six".

Divisors: 1 2 3 6 9 18 27 54 530129 1060258 1590387 3180774 4771161 9542322 14313483 28626966