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64204606220 = 22533115976073
BaseRepresentation
bin111011110010111001…
…001000101100001100
320010201112021221011112
4323302321020230030
52022442334344340
645254543311152
74432023101606
oct736271105414
9203645257145
1064204606220
112525790aa37
1210539bab4b8
136092889671
143171068176
151a0b942065
hexef2e48b0c

64204606220 has 48 divisors (see below), whose sum is σ = 135343977888. Its totient is φ = 25584007680.

The previous prime is 64204606217. The next prime is 64204606267. The reversal of 64204606220 is 2260640246.

64204606220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10569104 + ... + 10575176.

It is an arithmetic number, because the mean of its divisors is an integer number (2819666206).

Almost surely, 264204606220 is an apocalyptic number.

It is an amenable number.

64204606220 is an abundant number, since it is smaller than the sum of its proper divisors (71139371668).

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

64204606220 is a wasteful number, since it uses less digits than its factorization.

64204606220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8010 (or 8008 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 64204606220 in words is "sixty-four billion, two hundred four million, six hundred six thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 331 662 1324 1597 1655 3194 3310 6073 6388 6620 7985 12146 15970 24292 30365 31940 60730 121460 528607 1057214 2010163 2114428 2643035 4020326 5286070 8040652 9698581 10050815 10572140 19397162 20101630 38794324 40203260 48492905 96985810 193971620 3210230311 6420460622 12840921244 16051151555 32102303110 64204606220