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290918204 = 22130355817
BaseRepresentation
bin10001010101110…
…000111100111100
3202021102011202022
4101111300330330
51043433340304
644511215312
710131523013
oct2125607474
9667364668
10290918204
1113a241175
1281517538
134836b165
142a8cba7a
151a817ebe
hex11570f3c

290918204 has 12 divisors (see below), whose sum is σ = 509506704. Its totient is φ = 145344864.

The previous prime is 290918197. The next prime is 290918231. The reversal of 290918204 is 402819092.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 22697 + ... + 33120.

It is an arithmetic number, because the mean of its divisors is an integer number (42458892).

Almost surely, 2290918204 is an apocalyptic number.

It is an amenable number.

290918204 is a deficient number, since it is larger than the sum of its proper divisors (218588500).

290918204 is a wasteful number, since it uses less digits than its factorization.

290918204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57124 (or 57122 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 290918204 is about 17056.3244575143. The cubic root of 290918204 is about 662.6084438120.

The spelling of 290918204 in words is "two hundred ninety million, nine hundred eighteen thousand, two hundred four".

Divisors: 1 2 4 1303 2606 5212 55817 111634 223268 72729551 145459102 290918204