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28126350 = 2325278929
BaseRepresentation
bin110101101001…
…0110010001110
31221220222002200
41223102302032
524200020400
62442502330
7461033010
oct153226216
957828080
1028126350
111497081a
1295049a6
135a9a215
143a421b0
152708b00
hex1ad2c8e

28126350 has 72 divisors (see below), whose sum is σ = 86370960. Its totient is φ = 6428160.

The previous prime is 28126349. The next prime is 28126361. The reversal of 28126350 is 5362182.

28126350 is a `hidden beast` number, since 28 + 1 + 2 + 635 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1315 + ... + 7614.

Almost surely, 228126350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28126350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43185480).

28126350 is an abundant number, since it is smaller than the sum of its proper divisors (58244610).

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

28126350 is a wasteful number, since it uses less digits than its factorization.

28126350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8954 (or 8946 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 28126350 is about 5303.4281365924. The cubic root of 28126350 is about 304.1149654624.

The spelling of 28126350 in words is "twenty-eight million, one hundred twenty-six thousand, three hundred fifty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 25 30 35 42 45 50 63 70 75 90 105 126 150 175 210 225 315 350 450 525 630 1050 1575 3150 8929 17858 26787 44645 53574 62503 80361 89290 125006 133935 160722 187509 223225 267870 312515 375018 401805 446450 562527 625030 669675 803610 937545 1125054 1339350 1562575 1875090 2009025 2812635 3125150 4018050 4687725 5625270 9375450 14063175 28126350