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290414880 = 25325747613
BaseRepresentation
bin10001010011110…
…110000100100000
3202020110121022200
4101103312010200
51043321234010
644452333200
710124325420
oct2123660440
9666417280
10290414880
11139a27aa8
1281314200
1348223032
142a7da480
151a768cc0
hex114f6120

290414880 has 288 divisors, whose sum is σ = 1158603264. Its totient is φ = 64862208.

The previous prime is 290414879. The next prime is 290414897. The reversal of 290414880 is 88414092.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 473454 + ... + 474066.

It is an arithmetic number, because the mean of its divisors is an integer number (4022928).

Almost surely, 2290414880 is an apocalyptic number.

290414880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290414880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579301632).

290414880 is an abundant number, since it is smaller than the sum of its proper divisors (868188384).

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

290414880 is a wasteful number, since it uses less digits than its factorization.

290414880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 290414880 is about 17041.5633085700. The cubic root of 290414880 is about 662.2260920620.

The spelling of 290414880 in words is "two hundred ninety million, four hundred fourteen thousand, eight hundred eighty".