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28886802 = 2371953683
BaseRepresentation
bin110111000110…
…0011100010010
32000100121020120
41232030130102
524343334202
62511051110
7500351040
oct156143422
960317216
1028886802
111534009a
129810a96
135ca53a9
143b9d390
1528090bc
hex1b8c712

28886802 has 64 divisors (see below), whose sum is σ = 70917120. Its totient is φ = 7660224.

The previous prime is 28886789. The next prime is 28886807. The reversal of 28886802 is 20868882.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (28886807) 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, 41953 + ... + 42635.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080).

Almost surely, 228886802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28886802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35458560).

28886802 is an abundant number, since it is smaller than the sum of its proper divisors (42030318).

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

28886802 is a wasteful number, since it uses less digits than its factorization.

28886802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767.

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 28886802 is about 5374.6443603275. The cubic root of 28886802 is about 306.8314140516.

The spelling of 28886802 in words is "twenty-eight million, eight hundred eighty-six thousand, eight hundred two".

Divisors: 1 2 3 6 7 14 19 21 38 42 53 57 106 114 133 159 266 318 371 399 683 742 798 1007 1113 1366 2014 2049 2226 3021 4098 4781 6042 7049 9562 12977 14098 14343 21147 25954 28686 36199 38931 42294 72398 77862 90839 108597 181678 217194 253393 272517 506786 545034 687781 760179 1375562 1520358 2063343 4126686 4814467 9628934 14443401 28886802