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290920360 = 23523930431
BaseRepresentation
bin10001010101110…
…001011110101000
3202021102021201011
4101111301132220
51043433422420
644511233304
710131532213
oct2125613650
9667367634
10290920360
1113a242855
1281518834
134836c133
142a8cc77a
151a81895a
hex115717a8

290920360 has 32 divisors (see below), whose sum is σ = 657331200. Its totient is φ = 115877440.

The previous prime is 290920349. The next prime is 290920369. The reversal of 290920360 is 63029092.

290920360 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (290920369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5656 + ... + 24775.

It is an arithmetic number, because the mean of its divisors is an integer number (20541600).

Almost surely, 2290920360 is an apocalyptic number.

290920360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290920360 is an abundant number, since it is smaller than the sum of its proper divisors (366410840).

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

290920360 is a wasteful number, since it uses less digits than its factorization.

290920360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30681 (or 30677 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 290920360 is about 17056.3876597596. The cubic root of 290920360 is about 662.6100806756.

The spelling of 290920360 in words is "two hundred ninety million, nine hundred twenty thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 239 478 956 1195 1912 2390 4780 9560 30431 60862 121724 152155 243448 304310 608620 1217240 7273009 14546018 29092036 36365045 58184072 72730090 145460180 290920360