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65726970345 = 3351361357727
BaseRepresentation
bin111101001101101000…
…011111100111101001
320021122121220001011000
4331031220133213221
52034102101022340
650110005025213
74514530013151
oct751550374751
9207577801130
1065726970345
1125969185703
12108a39b5209
1362760ac13a
14327730d761
151a9a407d30
hexf4da1f9e9

65726970345 has 32 divisors (see below), whose sum is σ = 116934128640. Its totient is φ = 35028529920.

The previous prime is 65726970293. The next prime is 65726970359. The reversal of 65726970345 is 54307962756.

65726970345 is a `hidden beast` number, since 6 + 572 + 69 + 7 + 0 + 3 + 4 + 5 = 666.

It is not a de Polignac number, because 65726970345 - 216 = 65726904809 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65726970291 and 65726970300.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4872 + ... + 362598.

It is an arithmetic number, because the mean of its divisors is an integer number (3654191520).

Almost surely, 265726970345 is an apocalyptic number.

It is an amenable number.

65726970345 is a deficient number, since it is larger than the sum of its proper divisors (51207158295).

65726970345 is a wasteful number, since it uses less digits than its factorization.

65726970345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359102 (or 359096 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 54.

The spelling of 65726970345 in words is "sixty-five billion, seven hundred twenty-six million, nine hundred seventy thousand, three hundred forty-five".

Divisors: 1 3 5 9 15 27 45 135 1361 4083 6805 12249 20415 36747 61245 183735 357727 1073181 1788635 3219543 5365905 9658629 16097715 48293145 486866447 1460599341 2434332235 4381798023 7302996705 13145394069 21908990115 65726970345