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645708551104 = 2610089196111
BaseRepresentation
bin10010110010101110011…
…10101001001111000000
32021201200112120000221101
421121113032221033000
541034402342113404
61212345011104144
764436155060651
oct11312716511700
92251615500841
10645708551104
11229930709571
12a51865a2054
1348b755b2c56
1423376a75528
1511be2abc2a4
hex96573a93c0

645708551104 has 14 divisors (see below), whose sum is σ = 1281327906224. Its totient is φ = 322854275520.

The previous prime is 645708551101. The next prime is 645708551149. The reversal of 645708551104 is 401155807546.

It is a super-4 number, since 4×6457085511044 (a number of 48 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645708551101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5044597992 + ... + 5044598119.

Almost surely, 2645708551104 is an apocalyptic number.

645708551104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

645708551104 is a deficient number, since it is larger than the sum of its proper divisors (635619355120).

645708551104 is a wasteful number, since it uses less digits than its factorization.

645708551104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10089196123 (or 10089196113 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 46.

The spelling of 645708551104 in words is "six hundred forty-five billion, seven hundred eight million, five hundred fifty-one thousand, one hundred four".

Divisors: 1 2 4 8 16 32 64 10089196111 20178392222 40356784444 80713568888 161427137776 322854275552 645708551104