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64468903 = 74998597
BaseRepresentation
bin1111010111101…
…1011110100111
311111022100201011
43311323132213
5113001001103
610221443051
71411655662
oct365733647
9144270634
1064468903
1133433494
1219710487
13104830a5
1487c26d9
1559d6d6d
hex3d7b7a7

64468903 has 4 divisors (see below), whose sum is σ = 64485000. Its totient is φ = 64452808.

The previous prime is 64468897. The next prime is 64468907. The reversal of 64468903 is 30986446.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-64468903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64468907) 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 3 ways as a sum of consecutive naturals, for example, 3201 + ... + 11797.

It is an arithmetic number, because the mean of its divisors is an integer number (16121250).

Almost surely, 264468903 is an apocalyptic number.

64468903 is a deficient number, since it is larger than the sum of its proper divisors (16097).

64468903 is an equidigital number, since it uses as much as digits as its factorization.

64468903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16096.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 64468903 is about 8029.2529540425. The cubic root of 64468903 is about 400.9745051712.

The spelling of 64468903 in words is "sixty-four million, four hundred sixty-eight thousand, nine hundred three".

Divisors: 1 7499 8597 64468903