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65397743068 = 2272565791033
BaseRepresentation
bin111100111010000000…
…100101110111011100
320020210200101120020011
4330322000211313130
52032413310234233
650013204333004
74503421433650
oct747200456734
9206720346204
1065397743068
112580a359349
12108116a4164
136222b19cb8
1432456cca60
151a7b5740cd
hexf3a025ddc

65397743068 has 24 divisors (see below), whose sum is σ = 130802020832. Its totient is φ = 28026203904.

The previous prime is 65397743029. The next prime is 65397743069. The reversal of 65397743068 is 86034779356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65397743069) 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 in 7 ways as a sum of consecutive naturals, for example, 672880 + ... + 763912.

Almost surely, 265397743068 is an apocalyptic number.

It is an amenable number.

65397743068 is an abundant number, since it is smaller than the sum of its proper divisors (65404277764).

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

65397743068 is a wasteful number, since it uses less digits than its factorization.

65397743068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116701 (or 116699 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 58.

The spelling of 65397743068 in words is "sixty-five billion, three hundred ninety-seven million, seven hundred forty-three thousand, sixty-eight".

Divisors: 1 2 4 7 14 28 25657 51314 91033 102628 179599 182066 359198 364132 637231 718396 1274462 2548924 2335633681 4671267362 9342534724 16349435767 32698871534 65397743068