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641286630324 = 223230758024487
BaseRepresentation
bin10010101010011111010…
…10010110101110110100
32021022021100221011222200
421111033222112232310
541001323334132244
61210334130024500
764221452263434
oct11251752265664
92238240834880
10641286630324
11227a71647a8a
12a4351718130
134861c446492
14230776922c4
1511a347a3669
hex954fa96bb4

641286630324 has 36 divisors (see below), whose sum is σ = 1626310349664. Its totient is φ = 213065912592.

The previous prime is 641286630323. The next prime is 641286630419. The reversal of 641286630324 is 423036682146.

641286630324 is a `hidden beast` number, since 6 + 4 + 1 + 2 + 8 + 6 + 630 + 3 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×6412866303242 (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641286630324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641286630323) 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, 29001192 + ... + 29023295.

Almost surely, 2641286630324 is an apocalyptic number.

It is an amenable number.

641286630324 is an abundant number, since it is smaller than the sum of its proper divisors (985023719340).

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

641286630324 is a wasteful number, since it uses less digits than its factorization.

641286630324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58024804 (or 58024799 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 641286630324 in words is "six hundred forty-one billion, two hundred eighty-six million, six hundred thirty thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 36 307 614 921 1228 1842 2763 3684 5526 11052 58024487 116048974 174073461 232097948 348146922 522220383 696293844 1044440766 2088881532 17813517509 35627035018 53440552527 71254070036 106881105054 160321657581 213762210108 320643315162 641286630324