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289890124 = 2279939067
BaseRepresentation
bin10001010001110…
…101111101001100
3202012110221111021
4101101311331030
51043202440444
644433203524
710120011466
oct2121657514
9665427437
10289890124
111396a9817
12811005a4
134809b224
142a701136
151a6b3584
hex11475f4c

289890124 has 12 divisors (see below), whose sum is σ = 507427144. Its totient is φ = 144910944.

The previous prime is 289890113. The next prime is 289890151. The reversal of 289890124 is 421098982.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27439 + ... + 36505.

Almost surely, 2289890124 is an apocalyptic number.

It is an amenable number.

289890124 is a deficient number, since it is larger than the sum of its proper divisors (217537020).

289890124 is a wasteful number, since it uses less digits than its factorization.

289890124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17064 (or 17062 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 289890124 is about 17026.1599898509. The cubic root of 289890124 is about 661.8269887387.

The spelling of 289890124 in words is "two hundred eighty-nine million, eight hundred ninety thousand, one hundred twenty-four".

Divisors: 1 2 4 7993 9067 15986 18134 31972 36268 72472531 144945062 289890124