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468939290 = 2546893929
BaseRepresentation
bin11011111100110…
…111001000011010
31012200101120202212
4123330313020122
51430022024130
6114310555122
714422626641
oct3374671032
91180346685
10468939290
11220782036
12111068aa2
13761cb391
14463cc358
152b27ee95
hex1bf3721a

468939290 has 8 divisors (see below), whose sum is σ = 844090740. Its totient is φ = 187575712.

The previous prime is 468939287. The next prime is 468939301. The reversal of 468939290 is 92939864.

It can be written as a sum of positive squares in 2 ways, for example, as 468419449 + 519841 = 21643^2 + 721^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23446955 + ... + 23446974.

Almost surely, 2468939290 is an apocalyptic number.

468939290 is a deficient number, since it is larger than the sum of its proper divisors (375151450).

468939290 is a wasteful number, since it uses less digits than its factorization.

468939290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46893936.

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 468939290 is about 21655.0061186784. The cubic root of 468939290 is about 776.9126756241.

The spelling of 468939290 in words is "four hundred sixty-eight million, nine hundred thirty-nine thousand, two hundred ninety".

Divisors: 1 2 5 10 46893929 93787858 234469645 468939290