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64882489 = 717545231
BaseRepresentation
bin1111011110000…
…0011100111001
311112002101001011
43313200130321
5113102214424
610234353521
71415330530
oct367403471
9145071034
1064882489
11336961a1
121988b8a1
1310599409
14888d317
155a69694
hex3de0739

64882489 has 8 divisors (see below), whose sum is σ = 78513408. Its totient is φ = 52342080.

The previous prime is 64882487. The next prime is 64882507. The reversal of 64882489 is 98428846.

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

It is not a de Polignac number, because 64882489 - 21 = 64882487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64882487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272497 + ... + 272734.

It is an arithmetic number, because the mean of its divisors is an integer number (9814176).

Almost surely, 264882489 is an apocalyptic number.

It is an amenable number.

64882489 is a deficient number, since it is larger than the sum of its proper divisors (13630919).

64882489 is a wasteful number, since it uses less digits than its factorization.

64882489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545255.

The product of its digits is 884736, while the sum is 49.

The square root of 64882489 is about 8054.9667286712. The cubic root of 64882489 is about 401.8301325170.

The spelling of 64882489 in words is "sixty-four million, eight hundred eighty-two thousand, four hundred eighty-nine".

Divisors: 1 7 17 119 545231 3816617 9268927 64882489