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78168495 = 355211233
BaseRepresentation
bin1001010100011…
…00000110101111
312110002101000110
410222030012233
5130002342440
611431231103
71636264326
oct452140657
9173071013
1078168495
1140140169
1222218493
131326b862
14a54b0bd
156ce1080
hex4a8c1af

78168495 has 8 divisors (see below), whose sum is σ = 125069616. Its totient is φ = 41689856.

The previous prime is 78168437. The next prime is 78168523. The reversal of 78168495 is 59486187.

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

It is a cyclic number.

It is not a de Polignac number, because 78168495 - 210 = 78167471 is a prime.

It is a super-2 number, since 2×781684952 = 12220627221130050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2605602 + ... + 2605631.

It is an arithmetic number, because the mean of its divisors is an integer number (15633702).

Almost surely, 278168495 is an apocalyptic number.

78168495 is a deficient number, since it is larger than the sum of its proper divisors (46901121).

78168495 is a wasteful number, since it uses less digits than its factorization.

78168495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211241.

The product of its digits is 483840, while the sum is 48.

The square root of 78168495 is about 8841.2948712279. The cubic root of 78168495 is about 427.5733057151.

The spelling of 78168495 in words is "seventy-eight million, one hundred sixty-eight thousand, four hundred ninety-five".

Divisors: 1 3 5 15 5211233 15633699 26056165 78168495