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64884064248 = 23322513590309
BaseRepresentation
bin111100011011011001…
…000011111111111000
320012110212210222100200
4330123121003333320
52030340310023443
645450214402200
74454613306033
oct743331037770
9205425728320
1064884064248
11255763a98a3
12106a9660360
136170585a33
1431d73b601a
151a4b407dd3
hexf1b643ff8

64884064248 has 48 divisors (see below), whose sum is σ = 176427833400. Its totient is φ = 21541848000.

The previous prime is 64884064241. The next prime is 64884064249. The reversal of 64884064248 is 84246048846.

It is a junction number, because it is equal to n+sod(n) for n = 64884064194 and 64884064203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64884064241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1777083 + ... + 1813226.

Almost surely, 264884064248 is an apocalyptic number.

It is an amenable number.

64884064248 is an abundant number, since it is smaller than the sum of its proper divisors (111543769152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64884064248 is a wasteful number, since it uses less digits than its factorization.

64884064248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3590572 (or 3590565 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 54.

The spelling of 64884064248 in words is "sixty-four billion, eight hundred eighty-four million, sixty-four thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 251 502 753 1004 1506 2008 2259 3012 4518 6024 9036 18072 3590309 7180618 10770927 14361236 21541854 28722472 32312781 43083708 64625562 86167416 129251124 258502248 901167559 1802335118 2703502677 3604670236 5407005354 7209340472 8110508031 10814010708 16221016062 21628021416 32442032124 64884064248