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28653150 = 2352191021
BaseRepresentation
bin110110101001…
…1011001011110
31222220201201210
41231103121132
524313400100
62502045250
7465355611
oct155233136
958821653
1028653150
11151a0599
129719826
135c22c36
143b3c178
1527aec50
hex1b5365e

28653150 has 24 divisors (see below), whose sum is σ = 71060184. Its totient is φ = 7640800.

The previous prime is 28653113. The next prime is 28653151. The reversal of 28653150 is 5135682.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28653151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95361 + ... + 95660.

It is an arithmetic number, because the mean of its divisors is an integer number (2960841).

Almost surely, 228653150 is an apocalyptic number.

28653150 is an abundant number, since it is smaller than the sum of its proper divisors (42407034).

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

28653150 is a wasteful number, since it uses less digits than its factorization.

28653150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191036 (or 191031 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 28653150 is about 5352.8637195430. The cubic root of 28653150 is about 306.0019009664.

The spelling of 28653150 in words is "twenty-eight million, six hundred fifty-three thousand, one hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 191021 382042 573063 955105 1146126 1910210 2865315 4775525 5730630 9551050 14326575 28653150