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290134580 = 225173127527
BaseRepresentation
bin10001010010110…
…001101000110100
3202012221100211012
4101102301220310
51043233301310
644442331352
710122050261
oct2122615064
9665840735
10290134580
1113985644a
12811b9b58
1348155588
142a766268
151a710c05
hex114b1a34

290134580 has 48 divisors (see below), whose sum is σ = 665957376. Its totient is φ = 105699840.

The previous prime is 290134543. The next prime is 290134591. The reversal of 290134580 is 85431092.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3224 + ... + 24303.

It is an arithmetic number, because the mean of its divisors is an integer number (13874112).

Almost surely, 2290134580 is an apocalyptic number.

290134580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290134580 is an abundant number, since it is smaller than the sum of its proper divisors (375822796).

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

290134580 is a wasteful number, since it uses less digits than its factorization.

290134580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27584 (or 27582 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 290134580 is about 17033.3373124588. The cubic root of 290134580 is about 662.0129696896.

The spelling of 290134580 in words is "two hundred ninety million, one hundred thirty-four thousand, five hundred eighty".

Divisors: 1 2 4 5 10 17 20 31 34 62 68 85 124 155 170 310 340 527 620 1054 2108 2635 5270 10540 27527 55054 110108 137635 275270 467959 550540 853337 935918 1706674 1871836 2339795 3413348 4266685 4679590 8533370 9359180 14506729 17066740 29013458 58026916 72533645 145067290 290134580