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290728059 = 3193502121
BaseRepresentation
bin10001010101000…
…010100001111011
3202021001111220220
4101111002201323
51043411244214
644503151123
710130101446
oct2125024173
9667044826
10290728059
1113a121326
12814454a3
134830274b
142a87c65d
151a7cb9a9
hex1154287b

290728059 has 8 divisors (see below), whose sum is σ = 389646672. Its totient is φ = 192814080.

The previous prime is 290728049. The next prime is 290728093. The reversal of 290728059 is 950827092.

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

It is not a de Polignac number, because 290728059 - 24 = 290728043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 290728059.

It is not an unprimeable number, because it can be changed into a prime (290728049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250482 + ... + 251639.

It is an arithmetic number, because the mean of its divisors is an integer number (48705834).

Almost surely, 2290728059 is an apocalyptic number.

290728059 is a deficient number, since it is larger than the sum of its proper divisors (98918613).

290728059 is a wasteful number, since it uses less digits than its factorization.

290728059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502317.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 290728059 is about 17050.7495143175. The cubic root of 290728059 is about 662.4640514017.

The spelling of 290728059 in words is "two hundred ninety million, seven hundred twenty-eight thousand, fifty-nine".

Divisors: 1 3 193 579 502121 1506363 96909353 290728059