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64336071460 = 2253216803573
BaseRepresentation
bin111011111010101110…
…101000101100100100
320011001200200001120111
4323322232220230210
52023230013241320
645320001142404
74435210404313
oct737256505444
9204050601514
1064336071460
11253150427a1
121057602aa04
1360b3b9904b
1431846ca27a
151a1825ea5a
hexefaba8b24

64336071460 has 12 divisors (see below), whose sum is σ = 135105750108. Its totient is φ = 25734428576.

The previous prime is 64336071407. The next prime is 64336071461. The reversal of 64336071460 is 6417063346.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50115985956 + 14220085504 = 223866^2 + 119248^2 .

It is not an unprimeable number, because it can be changed into a prime (64336071461) 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, 1608401767 + ... + 1608401806.

It is an arithmetic number, because the mean of its divisors is an integer number (11258812509).

Almost surely, 264336071460 is an apocalyptic number.

It is an amenable number.

64336071460 is an abundant number, since it is smaller than the sum of its proper divisors (70769678648).

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

64336071460 is a wasteful number, since it uses less digits than its factorization.

64336071460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216803582 (or 3216803580 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 64336071460 in words is "sixty-four billion, three hundred thirty-six million, seventy-one thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 3216803573 6433607146 12867214292 16084017865 32168035730 64336071460