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64321105848 = 23397131210911
BaseRepresentation
bin111011111001110101…
…100010111110111000
320011000122111201121120
4323321311202332320
52023212200341343
645314304305240
74434636243636
oct737165427670
9204018451546
1064321105848
112530765091a
1210571012220
1360b0a5925c
143182712356
151a16ca5683
hexef9d62fb8

64321105848 has 64 divisors (see below), whose sum is σ = 163701457920. Its totient is φ = 21057254400.

The previous prime is 64321105817. The next prime is 64321105861. The reversal of 64321105848 is 84850112346.

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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199513 + ... + 410423.

It is an arithmetic number, because the mean of its divisors is an integer number (2557835280).

Almost surely, 264321105848 is an apocalyptic number.

It is an amenable number.

64321105848 is an abundant number, since it is smaller than the sum of its proper divisors (99380352072).

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

64321105848 is a wasteful number, since it uses less digits than its factorization.

64321105848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211148 (or 211144 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 64321105848 in words is "sixty-four billion, three hundred twenty-one million, one hundred five thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 97 131 194 262 291 388 393 524 582 776 786 1048 1164 1572 2328 3144 12707 25414 38121 50828 76242 101656 152484 210911 304968 421822 632733 843644 1265466 1687288 2530932 5061864 20458367 27629341 40916734 55258682 61375101 81833468 82888023 110517364 122750202 163666936 165776046 221034728 245500404 331552092 491000808 663104184 2680046077 5360092154 8040138231 10720184308 16080276462 21440368616 32160552924 64321105848