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290248100 = 225223312457
BaseRepresentation
bin10001010011001…
…101010110100100
3202020011010112122
4101103031112210
51043300414400
644445005112
710123032242
oct2123152644
9666133478
10290248100
1113992376a
1281253798
134819514c
142a795792
151a734685
hex114cd5a4

290248100 has 36 divisors (see below), whose sum is σ = 632592324. Its totient is φ = 115591680.

The previous prime is 290248099. The next prime is 290248121. The reversal of 290248100 is 1842092.

290248100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 4502884 + 285745216 = 2122^2 + 16904^2 .

It is a super-2 number, since 2×2902481002 = 168487919107220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 290248100.

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 11 ways as a sum of consecutive naturals, for example, 17072 + ... + 29528.

It is an arithmetic number, because the mean of its divisors is an integer number (17572009).

Almost surely, 2290248100 is an apocalyptic number.

290248100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290248100 is an abundant number, since it is smaller than the sum of its proper divisors (342344224).

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

290248100 is a wasteful number, since it uses less digits than its factorization.

290248100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12704 (or 12697 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 290248100 is about 17036.6692754188. The cubic root of 290248100 is about 662.0992996415.

The spelling of 290248100 in words is "two hundred ninety million, two hundred forty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 233 466 932 1165 2330 4660 5825 11650 12457 23300 24914 49828 62285 124570 249140 311425 622850 1245700 2902481 5804962 11609924 14512405 29024810 58049620 72562025 145124050 290248100