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290073078 = 23216115171
BaseRepresentation
bin10001010010100…
…010100111110110
3202012211020110100
4101102202213312
51043224314303
644441134530
710121403051
oct2122424766
9665736410
10290073078
11139814219
128118a446
1348133599
142a74ba98
151a6ec8a3
hex114a29f6

290073078 has 12 divisors (see below), whose sum is σ = 628491708. Its totient is φ = 96691020.

The previous prime is 290073067. The next prime is 290073097. The reversal of 290073078 is 870370092.

It is a Curzon number.

It is a congruent number.

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, 8057568 + ... + 8057603.

It is an arithmetic number, because the mean of its divisors is an integer number (52374309).

Almost surely, 2290073078 is an apocalyptic number.

290073078 is an abundant number, since it is smaller than the sum of its proper divisors (338418630).

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

290073078 is a wasteful number, since it uses less digits than its factorization.

290073078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16115179 (or 16115176 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 290073078 is about 17031.5318747316. The cubic root of 290073078 is about 661.9661891014.

The spelling of 290073078 in words is "two hundred ninety million, seventy-three thousand, seventy-eight".

Divisors: 1 2 3 6 9 18 16115171 32230342 48345513 96691026 145036539 290073078