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13680271346 = 278928033917
BaseRepresentation
bin11001011110110100…
…00101111111110010
31022022101211210022112
430233122011333302
5211004122140341
610141251405322
7663003250010
oct145732057762
938271753275
1013680271346
11589017a385
1227995b3842
1313a02c4321
1493ac498b0
15551028aeb
hex32f685ff2

13680271346 has 32 divisors (see below), whose sum is σ = 23729915520. Its totient is φ = 5793549696.

The previous prime is 13680271343. The next prime is 13680271351. The reversal of 13680271346 is 64317208631.

It is not an unprimeable number, because it can be changed into a prime (13680271343) 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, 3490580 + ... + 3494496.

It is an arithmetic number, because the mean of its divisors is an integer number (741559860).

Almost surely, 213680271346 is an apocalyptic number.

13680271346 is a deficient number, since it is larger than the sum of its proper divisors (10049644174).

13680271346 is a wasteful number, since it uses less digits than its factorization.

13680271346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6818.

The product of its (nonzero) digits is 145152, while the sum is 41.

Adding to 13680271346 its reverse (64317208631), we get a palindrome (77997479977).

The spelling of 13680271346 in words is "thirteen billion, six hundred eighty million, two hundred seventy-one thousand, three hundred forty-six".

Divisors: 1 2 7 14 89 178 623 1246 2803 3917 5606 7834 19621 27419 39242 54838 249467 348613 498934 697226 1746269 2440291 3492538 4880582 10979351 21958702 76855457 153710914 977162239 1954324478 6840135673 13680271346