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28714752 = 2832112103
BaseRepresentation
bin110110110001…
…0011100000000
32000000212020100
41231202130000
524322333002
62503242400
7466033323
oct155423400
960025210
1028714752
1115232900
129749400
135c44ca1
143b567ba
1527c311c
hex1b62700

28714752 has 162 divisors, whose sum is σ = 91885976. Its totient is φ = 8616960.

The previous prime is 28714747. The next prime is 28714753. The reversal of 28714752 is 25741782.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28714753) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 278733 + ... + 278835.

Almost surely, 228714752 is an apocalyptic number.

28714752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28714752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45942988).

28714752 is an abundant number, since it is smaller than the sum of its proper divisors (63171224).

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

28714752 is a wasteful number, since it uses less digits than its factorization.

28714752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 119 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 28714752 is about 5358.6147463687. The cubic root of 28714752 is about 306.2210372721.

The spelling of 28714752 in words is "twenty-eight million, seven hundred fourteen thousand, seven hundred fifty-two".