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468978979 = 766996997
BaseRepresentation
bin11011111101000…
…000110100100011
31012200110121012211
4123331000310203
51430024311404
6114311502551
714423153440
oct3375006443
91180417184
10468978979
112207a9937
12111087a57
1376213471
14463dc9c7
152b28bb04
hex1bf40d23

468978979 has 4 divisors (see below), whose sum is σ = 535975984. Its totient is φ = 401981976.

The previous prime is 468978977. The next prime is 468978989. The reversal of 468978979 is 979879864.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 468978979 - 21 = 468978977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (468978977) 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, 33498492 + ... + 33498505.

It is an arithmetic number, because the mean of its divisors is an integer number (133993996).

Almost surely, 2468978979 is an apocalyptic number.

468978979 is a deficient number, since it is larger than the sum of its proper divisors (66997005).

468978979 is an equidigital number, since it uses as much as digits as its factorization.

468978979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66997004.

The product of its digits is 54867456, while the sum is 67.

The square root of 468978979 is about 21655.9224924730. The cubic root of 468978979 is about 776.9345931857.

The spelling of 468978979 in words is "four hundred sixty-eight million, nine hundred seventy-eight thousand, nine hundred seventy-nine".

Divisors: 1 7 66996997 468978979