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290842894 = 21934011879
BaseRepresentation
bin10001010101011…
…110100100001110
3202021021100110001
4101111132210032
51043423433034
644505434514
710131060316
oct2125364416
9667240401
10290842894
1113a19a631
128149ba3a
1348342ab4
142a8ac446
151a800a14
hex1155e90e

290842894 has 16 divisors (see below), whose sum is σ = 439852320. Its totient is φ = 144230400.

The previous prime is 290842883. The next prime is 290842901. The reversal of 290842894 is 498248092.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153847 + ... + 155725.

It is an arithmetic number, because the mean of its divisors is an integer number (27490770).

Almost surely, 2290842894 is an apocalyptic number.

290842894 is a deficient number, since it is larger than the sum of its proper divisors (149009426).

290842894 is a wasteful number, since it uses less digits than its factorization.

290842894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 290842894 is about 17054.1166291309. The cubic root of 290842894 is about 662.5512623915.

The spelling of 290842894 in words is "two hundred ninety million, eight hundred forty-two thousand, eight hundred ninety-four".

Divisors: 1 2 193 386 401 802 1879 3758 77393 154786 362647 725294 753479 1506958 145421447 290842894