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2990238 = 23598447
BaseRepresentation
bin1011011010000010011110
312121220211120
423122002132
51231141423
6144031410
734262616
oct13320236
95556746
102990238
111762679
121002566
13809094
1457ba46
153e0ee3
hex2da09e

2990238 has 16 divisors (see below), whose sum is σ = 6082560. Its totient is φ = 979736.

The previous prime is 2990237. The next prime is 2990279. The reversal of 2990238 is 8320992.

2990238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2990199 and 2990208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3870 + ... + 4577.

It is an arithmetic number, because the mean of its divisors is an integer number (380160).

22990238 is an apocalyptic number.

2990238 is an abundant number, since it is smaller than the sum of its proper divisors (3092322).

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

2990238 is a wasteful number, since it uses less digits than its factorization.

2990238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8511.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 2990238 is about 1729.2304646865. The cubic root of 2990238 is about 144.0683510390.

The spelling of 2990238 in words is "two million, nine hundred ninety thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 59 118 177 354 8447 16894 25341 50682 498373 996746 1495119 2990238