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268249465 = 5114877263
BaseRepresentation
bin11111111110100…
…10100101111001
3200200202111002101
433333102211321
51022132440330
642341303401
76435040261
oct1777224571
9620674071
10268249465
11128468880
1275a04b61
13437620c3
14278aa7a1
151883b4ca
hexffd2979

268249465 has 8 divisors (see below), whose sum is σ = 351163008. Its totient is φ = 195090480.

The previous prime is 268249463. The next prime is 268249493. The reversal of 268249465 is 564942862.

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

It is not a de Polignac number, because 268249465 - 21 = 268249463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268249463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2438577 + ... + 2438686.

It is an arithmetic number, because the mean of its divisors is an integer number (43895376).

Almost surely, 2268249465 is an apocalyptic number.

It is an amenable number.

268249465 is a deficient number, since it is larger than the sum of its proper divisors (82913543).

268249465 is a wasteful number, since it uses less digits than its factorization.

268249465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4877279.

The product of its digits is 829440, while the sum is 46.

The square root of 268249465 is about 16378.3230216039. The cubic root of 268249465 is about 644.9305575941.

The spelling of 268249465 in words is "two hundred sixty-eight million, two hundred forty-nine thousand, four hundred sixty-five".

Divisors: 1 5 11 55 4877263 24386315 53649893 268249465