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64248501 = 321416167
BaseRepresentation
bin1111010100010…
…1101010110101
311110220011101010
43311011222311
5112421423001
610213022433
71410050262
oct365055265
9143804333
1064248501
11332a2939
1219624a19
1310406985
148766269
1559918d6
hex3d45ab5

64248501 has 4 divisors (see below), whose sum is σ = 85664672. Its totient is φ = 42832332.

The previous prime is 64248473. The next prime is 64248521. The reversal of 64248501 is 10584246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 64248501 - 215 = 64215733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64248521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10708081 + ... + 10708086.

It is an arithmetic number, because the mean of its divisors is an integer number (21416168).

Almost surely, 264248501 is an apocalyptic number.

It is an amenable number.

64248501 is a deficient number, since it is larger than the sum of its proper divisors (21416171).

64248501 is a wasteful number, since it uses less digits than its factorization.

64248501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21416170.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 64248501 is about 8015.5162653444. The cubic root of 64248501 is about 400.5170417982.

The spelling of 64248501 in words is "sixty-four million, two hundred forty-eight thousand, five hundred one".

Divisors: 1 3 21416167 64248501