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290295481 = 7291430027
BaseRepresentation
bin10001010011011…
…000111010111001
3202020020112112111
4101103120322321
51043303423411
644450012321
710123320340
oct2123307271
9666215474
10290295481
11139956323
12812770a1
13481b0898
142a7a8b57
151a743721
hex114d8eb9

290295481 has 8 divisors (see below), whose sum is σ = 343206720. Its totient is φ = 240244368.

The previous prime is 290295463. The next prime is 290295487. The reversal of 290295481 is 184592092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 290295481 - 213 = 290287289 is a prime.

It is a super-2 number, since 2×2902954812 = 168542932578042722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290295487) 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, 714811 + ... + 715216.

It is an arithmetic number, because the mean of its divisors is an integer number (42900840).

Almost surely, 2290295481 is an apocalyptic number.

It is an amenable number.

290295481 is a deficient number, since it is larger than the sum of its proper divisors (52911239).

290295481 is a wasteful number, since it uses less digits than its factorization.

290295481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430063.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 290295481 is about 17038.0597780381. The cubic root of 290295481 is about 662.1353253956.

The spelling of 290295481 in words is "two hundred ninety million, two hundred ninety-five thousand, four hundred eighty-one".

Divisors: 1 7 29 203 1430027 10010189 41470783 290295481