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28962648 = 233211132997
BaseRepresentation
bin110111001111…
…0111101011000
32000111110021200
41232132331120
524403301043
62512434200
7501115131
oct156367530
960443250
1028962648
1115392080
129848960
136000a80
143bbcc88
1528217d3
hex1b9ef58

28962648 has 192 divisors, whose sum is σ = 96314400. Its totient is φ = 7741440.

The previous prime is 28962641. The next prime is 28962671. The reversal of 28962648 is 84626982.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (331776) is a multiple of the sum of its prime factors (162).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28962641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 298536 + ... + 298632.

Almost surely, 228962648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28962648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48157200).

28962648 is an abundant number, since it is smaller than the sum of its proper divisors (67351752).

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

28962648 is a wasteful number, since it uses less digits than its factorization.

28962648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 155 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 28962648 is about 5381.6956435681. The cubic root of 28962648 is about 307.0997210945.

The spelling of 28962648 in words is "twenty-eight million, nine hundred sixty-two thousand, six hundred forty-eight".