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14978245 = 56149109
BaseRepresentation
bin111001001000…
…110011000101
31001011222021211
4321020303011
512313300440
61253011421
7241212232
oct71106305
931158254
1014978245
118500417
125023b71
133145789
141dbc789
1514aceea
hexe48cc5

14978245 has 8 divisors (see below), whose sum is σ = 18268920. Its totient is φ = 11785920.

The previous prime is 14978237. The next prime is 14978279. The reversal of 14978245 is 54287941.

It can be written as a sum of positive squares in 4 ways, for example, as 431649 + 14546596 = 657^2 + 3814^2 .

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

It is not a de Polignac number, because 14978245 - 23 = 14978237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14978198 and 14978207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24250 + ... + 24859.

It is an arithmetic number, because the mean of its divisors is an integer number (2283615).

Almost surely, 214978245 is an apocalyptic number.

It is an amenable number.

14978245 is a deficient number, since it is larger than the sum of its proper divisors (3290675).

14978245 is an equidigital number, since it uses as much as digits as its factorization.

14978245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49175.

The product of its digits is 80640, while the sum is 40.

The square root of 14978245 is about 3870.1737687086. The cubic root of 14978245 is about 246.5019220940.

The spelling of 14978245 in words is "fourteen million, nine hundred seventy-eight thousand, two hundred forty-five".

Divisors: 1 5 61 305 49109 245545 2995649 14978245