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290417020 = 22529500719
BaseRepresentation
bin10001010011110…
…110100101111100
3202020110201020221
4101103312211330
51043321321040
644452351124
710124334565
oct2123664574
9666421227
10290417020
11139a29673
12813154a4
1348223cba
142a7db16c
151a76974a
hex114f697c

290417020 has 24 divisors (see below), whose sum is σ = 630907200. Its totient is φ = 112160832.

The previous prime is 290416993. The next prime is 290417041. The reversal of 290417020 is 20714092.

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, 249780 + ... + 250939.

It is an arithmetic number, because the mean of its divisors is an integer number (26287800).

Almost surely, 2290417020 is an apocalyptic number.

290417020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290417020 is an abundant number, since it is smaller than the sum of its proper divisors (340490180).

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

290417020 is a wasteful number, since it uses less digits than its factorization.

290417020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500757 (or 500755 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 290417020 is about 17041.6260961212. The cubic root of 290417020 is about 662.2277186549.

The spelling of 290417020 in words is "two hundred ninety million, four hundred seventeen thousand, twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 500719 1001438 2002876 2503595 5007190 10014380 14520851 29041702 58083404 72604255 145208510 290417020