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28650435 = 3511891951
BaseRepresentation
bin110110101001…
…0101111000011
31222220121000020
41231102233003
524313303220
62502024523
7465344652
oct155225703
958817006
1028650435
1115199550
129718143
135c21928
143b3b199
1527ae040
hex1b52bc3

28650435 has 32 divisors (see below), whose sum is σ = 50595840. Its totient is φ = 13728000.

The previous prime is 28650421. The next prime is 28650439. The reversal of 28650435 is 53405682.

It is not a de Polignac number, because 28650435 - 25 = 28650403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 28650396 and 28650405.

It is not an unprimeable number, because it can be changed into a prime (28650439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13710 + ... + 15660.

It is an arithmetic number, because the mean of its divisors is an integer number (1581120).

Almost surely, 228650435 is an apocalyptic number.

28650435 is a deficient number, since it is larger than the sum of its proper divisors (21945405).

28650435 is a wasteful number, since it uses less digits than its factorization.

28650435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 28650435 is about 5352.6101109646. The cubic root of 28650435 is about 305.9922356952.

It can be divided in two parts, 286 and 50435, that added together give a triangular number (50721 = T318).

The spelling of 28650435 in words is "twenty-eight million, six hundred fifty thousand, four hundred thirty-five".

Divisors: 1 3 5 11 15 33 55 89 165 267 445 979 1335 1951 2937 4895 5853 9755 14685 21461 29265 64383 107305 173639 321915 520917 868195 1910029 2604585 5730087 9550145 28650435