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298030990 = 2529803099
BaseRepresentation
bin10001110000111…
…001011110001110
3202202210112122211
4101300321132032
51102243442430
645323501034
710246136005
oct2160713616
9682715584
10298030990
1114325a104
128398777a
134998b7ca
142b81dc3c
151b27072a
hex11c3978e

298030990 has 8 divisors (see below), whose sum is σ = 536455800. Its totient is φ = 119212392.

The previous prime is 298030973. The next prime is 298030991. The reversal of 298030990 is 99030892.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298030991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14901540 + ... + 14901559.

It is an arithmetic number, because the mean of its divisors is an integer number (67056975).

Almost surely, 2298030990 is an apocalyptic number.

298030990 is a deficient number, since it is larger than the sum of its proper divisors (238424810).

298030990 is a wasteful number, since it uses less digits than its factorization.

298030990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29803106.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 298030990 is about 17263.5740795468. The cubic root of 298030990 is about 667.9651561899.

The spelling of 298030990 in words is "two hundred ninety-eight million, thirty thousand, nine hundred ninety".

Divisors: 1 2 5 10 29803099 59606198 149015495 298030990