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12892760320 = 285111815059
BaseRepresentation
bin11000000000111011…
…11110100100000000
31020021112000002021111
430000131332210000
5202401021312240
65531200333104
7634331440336
oct140035764400
936245002244
1012892760320
115516699720
1225b9914194
1312a60c4b7b
148a4411b56
15506d1c1ea
hex30077e900

12892760320 has 144 divisors (see below), whose sum is σ = 33882488640. Its totient is φ = 4661452800.

The previous prime is 12892760311. The next prime is 12892760323. The reversal of 12892760320 is 2306729821.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (12892760323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2545951 + ... + 2551009.

It is an arithmetic number, because the mean of its divisors is an integer number (235295060).

Almost surely, 212892760320 is an apocalyptic number.

12892760320 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 12892760320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16941244320).

12892760320 is an abundant number, since it is smaller than the sum of its proper divisors (20989728320).

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

12892760320 is a wasteful number, since it uses less digits than its factorization.

12892760320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5272 (or 5258 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 12892760320 in words is "twelve billion, eight hundred ninety-two million, seven hundred sixty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 128 160 176 181 220 256 320 352 362 440 640 704 724 880 905 1280 1408 1448 1760 1810 1991 2816 2896 3520 3620 3982 5059 5792 7040 7240 7964 9955 10118 11584 14080 14480 15928 19910 20236 23168 25295 28960 31856 39820 40472 46336 50590 55649 57920 63712 79640 80944 101180 111298 115840 127424 159280 161888 202360 222596 231680 254848 278245 318560 323776 404720 445192 509696 556490 637120 647552 809440 890384 915679 1112980 1274240 1295104 1618880 1780768 1831358 2225960 2548480 3237760 3561536 3662716 4451920 4578395 6475520 7123072 7325432 8903840 9156790 10072469 14246144 14650864 17807680 18313580 20144938 29301728 35615360 36627160 40289876 50362345 58603456 71230720 73254320 80579752 100724690 117206912 146508640 161159504 201449380 234413824 293017280 322319008 402898760 586034560 644638016 805797520 1172069120 1289276032 1611595040 2578552064 3223190080 6446380160 12892760320