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12979340160 = 273543157211
BaseRepresentation
bin11000001011010000…
…10000001110000000
31020111112220210111020
430011220100032000
5203040202341120
65543532145440
7636432366603
oct140550201600
936445823436
1012979340160
115560554406
122622908280
1312bb01a147
148b1b0c33a
1550e720640
hex305a10380

12979340160 has 128 divisors (see below), whose sum is σ = 42334047360. Its totient is φ = 3380643840.

The previous prime is 12979340147. The next prime is 12979340177. The reversal of 12979340160 is 6104397921.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3955 + ... + 161165.

It is an arithmetic number, because the mean of its divisors is an integer number (330734745).

Almost surely, 212979340160 is an apocalyptic number.

12979340160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12979340160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21167023680).

12979340160 is an abundant number, since it is smaller than the sum of its proper divisors (29354707200).

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

12979340160 is a wasteful number, since it uses less digits than its factorization.

12979340160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157276 (or 157264 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 12979340160 in words is "twelve billion, nine hundred seventy-nine million, three hundred forty thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 43 48 60 64 80 86 96 120 128 129 160 172 192 215 240 258 320 344 384 430 480 516 640 645 688 860 960 1032 1290 1376 1720 1920 2064 2580 2752 3440 4128 5160 5504 6880 8256 10320 13760 16512 20640 27520 41280 82560 157211 314422 471633 628844 786055 943266 1257688 1572110 1886532 2358165 2515376 3144220 3773064 4716330 5030752 6288440 6760073 7546128 9432660 10061504 12576880 13520146 15092256 18865320 20123008 20280219 25153760 27040292 30184512 33800365 37730640 40560438 50307520 54080584 60369024 67600730 75461280 81120876 100615040 101401095 108161168 135201460 150922560 162241752 202802190 216322336 270402920 301845120 324483504 405604380 432644672 540805840 648967008 811208760 865289344 1081611680 1297934016 1622417520 2163223360 2595868032 3244835040 4326446720 6489670080 12979340160