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306390058 = 21311784233
BaseRepresentation
bin10010010000110…
…010010000101010
3210100112020010221
4102100302100222
51111413440213
650223000254
710410162322
oct2220622052
9710466127
10306390058
11147a49427
128673908a
134b6274c0
142c998282
151bd7238d
hex1243242a

306390058 has 8 divisors (see below), whose sum is σ = 494937828. Its totient is φ = 141410784.

The previous prime is 306390037. The next prime is 306390059. The reversal of 306390058 is 850093603.

It can be written as a sum of positive squares in 2 ways, for example, as 263185729 + 43204329 = 16223^2 + 6573^2 .

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 (306390059) 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, 5892091 + ... + 5892142.

Almost surely, 2306390058 is an apocalyptic number.

306390058 is a deficient number, since it is larger than the sum of its proper divisors (188547770).

306390058 is a wasteful number, since it uses less digits than its factorization.

306390058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11784248.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 306390058 is about 17504.0011997257. The cubic root of 306390058 is about 674.1526141977.

The spelling of 306390058 in words is "three hundred six million, three hundred ninety thousand, fifty-eight".

Divisors: 1 2 13 26 11784233 23568466 153195029 306390058