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64205062032 = 2439726951263
BaseRepresentation
bin111011110010111010…
…110111111110010000
320010201120011002102110
4323302322313332100
52022442443441112
645255001145320
74432030010526
oct736272677620
9203646132373
1064205062032
11252580a1441
121053a18b240
1360929b8c87
143171146316
151a0b9d213c
hexef2eb7f90

64205062032 has 80 divisors (see below), whose sum is σ = 168199234560. Its totient is φ = 21101899776.

The previous prime is 64205062027. The next prime is 64205062057. The reversal of 64205062032 is 23026050246.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1226833 + ... + 1278095.

It is an arithmetic number, because the mean of its divisors is an integer number (2102490432).

Almost surely, 264205062032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64205062032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84099617280).

64205062032 is an abundant number, since it is smaller than the sum of its proper divisors (103994172528).

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

64205062032 is a wasteful number, since it uses less digits than its factorization.

64205062032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51640 (or 51634 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 64205062032 in words is "sixty-four billion, two hundred five million, sixty-two thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 97 194 269 291 388 538 582 776 807 1076 1164 1552 1614 2152 2328 3228 4304 4656 6456 12912 26093 51263 52186 78279 102526 104372 153789 156558 205052 208744 307578 313116 410104 417488 615156 626232 820208 1230312 1252464 2460624 4972511 9945022 13789747 14917533 19890044 27579494 29835066 39780088 41369241 55158988 59670132 79560176 82738482 110317976 119340264 165476964 220635952 238680528 330953928 661907856 1337605459 2675210918 4012816377 5350421836 8025632754 10700843672 16051265508 21401687344 32102531016 64205062032