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290148216 = 23312089509
BaseRepresentation
bin10001010010110…
…100111101111000
3202012222001112020
4101102310331320
51043234220331
644442514440
710122135111
oct2122647570
9665861466
10290148216
11139865716
1281205a20
134815b847
142a76b208
151a714c96
hex114b4f78

290148216 has 16 divisors (see below), whose sum is σ = 725370600. Its totient is φ = 96716064.

The previous prime is 290148193. The next prime is 290148217. The reversal of 290148216 is 612841092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290148217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6044731 + ... + 6044778.

Almost surely, 2290148216 is an apocalyptic number.

It is an amenable number.

290148216 is an abundant number, since it is smaller than the sum of its proper divisors (435222384).

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

290148216 is a wasteful number, since it uses less digits than its factorization.

290148216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12089518 (or 12089514 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 290148216 is about 17033.7375816349. The cubic root of 290148216 is about 662.0233408162.

The spelling of 290148216 in words is "two hundred ninety million, one hundred forty-eight thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 24 12089509 24179018 36268527 48358036 72537054 96716072 145074108 290148216