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670487734852 = 221380915938189
BaseRepresentation
bin10011100000111000010…
…11101110101001000100
32101002122102221222210121
421300130023232221010
541441124330003402
61232003503031324
766304211466115
oct11603413565104
92332572858717
10670487734852
11239396935021
12a9b40b9b544
134b2c4154360
142464797c20c
15126931c2837
hex9c1c2eea44

670487734852 has 24 divisors (see below), whose sum is σ = 1265173522200. Its totient is φ = 309073341696.

The previous prime is 670487734837. The next prime is 670487734853. The reversal of 670487734852 is 258437784076.

It can be written as a sum of positive squares in 4 ways, for example, as 171848386116 + 498639348736 = 414546^2 + 706144^2 .

It is not an unprimeable number, because it can be changed into a prime (670487734853) 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, 7927027 + ... + 8011162.

It is an arithmetic number, because the mean of its divisors is an integer number (52715563425).

Almost surely, 2670487734852 is an apocalyptic number.

It is an amenable number.

670487734852 is a deficient number, since it is larger than the sum of its proper divisors (594685787348).

670487734852 is a wasteful number, since it uses less digits than its factorization.

670487734852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15939015 (or 15939013 counting only the distinct ones).

The product of its (nonzero) digits is 63221760, while the sum is 61.

The spelling of 670487734852 in words is "six hundred seventy billion, four hundred eighty-seven million, seven hundred thirty-four thousand, eight hundred fifty-two".

Divisors: 1 2 4 13 26 52 809 1618 3236 10517 21034 42068 15938189 31876378 63752756 207196457 414392914 828785828 12893994901 25787989802 51575979604 167621933713 335243867426 670487734852