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641049500468 = 221357912128799
BaseRepresentation
bin10010101010000011000…
…01110001101100110100
32021021122211201201222102
421111001201301230310
541000332133003333
61210254415321232
764212542563646
oct11250141615464
92237584651872
10641049500468
1122795a8048a3
12a42a6220218
13485b228bb60
1423053da6896
1511a1da62ae8
hex9541871b34

641049500468 has 24 divisors (see below), whose sum is σ = 1208340940800. Its totient is φ = 295817770080.

The previous prime is 641049500387. The next prime is 641049500471. The reversal of 641049500468 is 864005940146.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763268 + ... + 1365531.

It is an arithmetic number, because the mean of its divisors is an integer number (50347539200).

Almost surely, 2641049500468 is an apocalyptic number.

It is an amenable number.

641049500468 is a deficient number, since it is larger than the sum of its proper divisors (567291440332).

641049500468 is a wasteful number, since it uses less digits than its factorization.

641049500468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134607 (or 2134605 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 641049500468 in words is "six hundred forty-one billion, forty-nine million, five hundred thousand, four hundred sixty-eight".

Divisors: 1 2 4 13 26 52 5791 11582 23164 75283 150566 301132 2128799 4257598 8515196 27674387 55348774 110697548 12327875009 24655750018 49311500036 160262375117 320524750234 641049500468