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288398106 = 23216022117
BaseRepresentation
bin10001001100001…
…001101100011010
3202002200010211100
4101030021230122
51042312214411
644341212230
710101225543
oct2114115432
9662603740
10288398106
1113887a847
1280701076
1347998089
142a4334ca
151a4bb456
hex11309b1a

288398106 has 12 divisors (see below), whose sum is σ = 624862602. Its totient is φ = 96132696.

The previous prime is 288398087. The next prime is 288398113. The reversal of 288398106 is 601893882.

It can be written as a sum of positive squares in only one way, i.e., 178462881 + 109935225 = 13359^2 + 10485^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8011041 + ... + 8011076.

Almost surely, 2288398106 is an apocalyptic number.

288398106 is an abundant number, since it is smaller than the sum of its proper divisors (336464496).

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

288398106 is a wasteful number, since it uses less digits than its factorization.

288398106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16022125 (or 16022122 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 288398106 is about 16982.2880083927. The cubic root of 288398106 is about 660.6895960342.

The spelling of 288398106 in words is "two hundred eighty-eight million, three hundred ninety-eight thousand, one hundred six".

Divisors: 1 2 3 6 9 18 16022117 32044234 48066351 96132702 144199053 288398106