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290227952 = 2473183591
BaseRepresentation
bin10001010011001…
…000011011110000
3202020010002220102
4101103020123300
51043244243302
644444331532
710122616430
oct2123103360
9666102812
10290227952
1113990a613
1281243ba8
1348188c21
142a78c2c0
151a72d702
hex114c86f0

290227952 has 40 divisors (see below), whose sum is σ = 663386112. Its totient is φ = 120369600.

The previous prime is 290227939. The next prime is 290227979. The reversal of 290227952 is 259722092.

It is a super-3 number, since 3×2902279523 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 38324 + ... + 45267.

Almost surely, 2290227952 is an apocalyptic number.

It is an amenable number.

290227952 is an abundant number, since it is smaller than the sum of its proper divisors (373158160).

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

290227952 is a wasteful number, since it uses less digits than its factorization.

290227952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83637 (or 83631 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 290227952 is about 17036.0779523927. The cubic root of 290227952 is about 662.0839790871.

The spelling of 290227952 in words is "two hundred ninety million, two hundred twenty-seven thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 31 56 62 112 124 217 248 434 496 868 1736 3472 83591 167182 334364 585137 668728 1170274 1337456 2340548 2591321 4681096 5182642 9362192 10365284 18139247 20730568 36278494 41461136 72556988 145113976 290227952