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129543670706 = 25313921141669
BaseRepresentation
bin111100010100101100…
…1111000101110110010
3110101101010021022111212
41320221121320232302
54110301134430311
6135302254240122
712234133014152
oct1705131705662
9411333238455
10129543670706
114aa3703018a
1221133ab6042
13c2a649ccb8
1463aca40762
153582c74c8b
hex1e29678bb2

129543670706 has 32 divisors (see below), whose sum is σ = 200356027200. Its totient is φ = 62792009280.

The previous prime is 129543670703. The next prime is 129543670721. The reversal of 129543670706 is 607076345921.

It is not an unprimeable number, because it can be changed into a prime (129543670703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3088040 + ... + 3129708.

It is an arithmetic number, because the mean of its divisors is an integer number (6261125850).

Almost surely, 2129543670706 is an apocalyptic number.

129543670706 is a deficient number, since it is larger than the sum of its proper divisors (70812356494).

129543670706 is a wasteful number, since it uses less digits than its factorization.

129543670706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42074.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 129543670706 in words is "one hundred twenty-nine billion, five hundred forty-three million, six hundred seventy thousand, seven hundred six".

Divisors: 1 2 53 106 139 211 278 422 7367 11183 14734 22366 29329 41669 58658 83338 1554437 2208457 3108874 4416914 5791991 8792159 11583982 17584318 306975523 465984427 613951046 931968854 1222110101 2444220202 64771835353 129543670706