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64141757684 = 2227757889673
BaseRepresentation
bin111011101111001001…
…011000110011110100
320010120011000220011222
4323233021120303310
52022330242221214
645244420245512
74430330641664
oct735711306364
9203504026158
1064141757684
11252253939a4
1210520b40898
136082852c94
1431669881a4
151a0617a38e
hexeef258cf4

64141757684 has 12 divisors (see below), whose sum is σ = 112653305604. Its totient is φ = 31955098944.

The previous prime is 64141757651. The next prime is 64141757747. The reversal of 64141757684 is 48675714146.

It can be written as a sum of positive squares in 2 ways, for example, as 8756842084 + 55384915600 = 93578^2 + 235340^2 .

It is a super-2 number, since 2×641417576842 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28943729 + ... + 28945944.

It is an arithmetic number, because the mean of its divisors is an integer number (9387775467).

Almost surely, 264141757684 is an apocalyptic number.

It is an amenable number.

64141757684 is a deficient number, since it is larger than the sum of its proper divisors (48511547920).

64141757684 is a wasteful number, since it uses less digits than its factorization.

64141757684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57889954 (or 57889952 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 53.

The spelling of 64141757684 in words is "sixty-four billion, one hundred forty-one million, seven hundred fifty-seven thousand, six hundred eighty-four".

Divisors: 1 2 4 277 554 1108 57889673 115779346 231558692 16035439421 32070878842 64141757684