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80648207445 = 35137331118217
BaseRepresentation
bin100101100011100000…
…0011111110001010101
321201011111211102110010
41023013000133301111
52310131420114240
6101014350550433
75553352311141
oct1130700376125
9251144742403
1080648207445
11312258a0a13
1213768b08419
1377b350bc10
143c90cb0221
152170360280
hex12c701fc55

80648207445 has 64 divisors (see below), whose sum is σ = 141327373824. Its totient is φ = 39031787520.

The previous prime is 80648207441. The next prime is 80648207447. The reversal of 80648207445 is 54470284608.

It is not a de Polignac number, because 80648207445 - 22 = 80648207441 is a prime.

It is a super-3 number, since 3×806482074453 (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80648207394 and 80648207403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80648207441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4417977 + ... + 4436193.

It is an arithmetic number, because the mean of its divisors is an integer number (2208240216).

Almost surely, 280648207445 is an apocalyptic number.

It is an amenable number.

80648207445 is a deficient number, since it is larger than the sum of its proper divisors (60679166379).

80648207445 is a wasteful number, since it uses less digits than its factorization.

80648207445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18622.

The product of its (nonzero) digits is 1720320, while the sum is 48.

The spelling of 80648207445 in words is "eighty billion, six hundred forty-eight million, two hundred seven thousand, four hundred forty-five".

Divisors: 1 3 5 13 15 39 65 73 195 219 311 365 933 949 1095 1555 2847 4043 4665 4745 12129 14235 18217 20215 22703 54651 60645 68109 91085 113515 236821 273255 295139 340545 710463 885417 1184105 1329841 1475695 3552315 3989523 4427085 5665487 6649205 16996461 17287933 19947615 28327435 51863799 73651331 84982305 86439665 220953993 259318995 368256655 413580551 1104769965 1240741653 2067902755 5376547163 6203708265 16129641489 26882735815 80648207445