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258294730 = 2525829473
BaseRepresentation
bin11110110010101…
…00001111001010
3200000000201202111
433121110033022
51012110412410
641344052534
76254316601
oct1731241712
9600021674
10258294730
11122889721
127260414a
1341688025
1426438a38
1517a21b8a
hexf6543ca

258294730 has 8 divisors (see below), whose sum is σ = 464930532. Its totient is φ = 103317888.

The previous prime is 258294727. The next prime is 258294737. The reversal of 258294730 is 37492852.

It can be written as a sum of positive squares in 2 ways, for example, as 258277041 + 17689 = 16071^2 + 133^2 .

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

It is not an unprimeable number, because it can be changed into a prime (258294737) 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, 12914727 + ... + 12914746.

Almost surely, 2258294730 is an apocalyptic number.

258294730 is a deficient number, since it is larger than the sum of its proper divisors (206635802).

258294730 is a wasteful number, since it uses less digits than its factorization.

258294730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25829480.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 258294730 is about 16071.5503296975. The cubic root of 258294730 is about 636.8519971898.

The spelling of 258294730 in words is "two hundred fifty-eight million, two hundred ninety-four thousand, seven hundred thirty".

Divisors: 1 2 5 10 25829473 51658946 129147365 258294730