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64214432501 = 229991282959
BaseRepresentation
bin111011110011011110…
…100111101011110101
320010202012210011021212
4323303132213223311
52023002343320001
645255534051205
74432202445632
oct736336475365
9203665704255
1064214432501
112526241162a
1210541349b05
13609491a12b
1431724a5189
151a0c7337bb
hexef37a7af5

64214432501 has 8 divisors (see below), whose sum is σ = 64560153600. Its totient is φ = 63869279760.

The previous prime is 64214432497. The next prime is 64214432519. The reversal of 64214432501 is 10523441246.

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

It is a cyclic number.

It is not a de Polignac number, because 64214432501 - 22 = 64214432497 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 (64214432201) 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, 85460 + ... + 368418.

It is an arithmetic number, because the mean of its divisors is an integer number (8070019200).

Almost surely, 264214432501 is an apocalyptic number.

It is an amenable number.

64214432501 is a deficient number, since it is larger than the sum of its proper divisors (345721099).

64214432501 is a wasteful number, since it uses less digits than its factorization.

64214432501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284179.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 64214432501 its reverse (10523441246), we get a palindrome (74737873747).

The spelling of 64214432501 in words is "sixty-four billion, two hundred fourteen million, four hundred thirty-two thousand, five hundred one".

Divisors: 1 229 991 226939 282959 64797611 280412369 64214432501