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106912456840 = 23578917324799
BaseRepresentation
bin110001110010001111…
…0101010000010001000
3101012221220122112101201
41203210132222002020
53222424042104330
6121040452553544
710503250613620
oct1434436520210
9335856575351
10106912456840
1141383327252
12188789228b4
13a10a943aa7
14526310d880
152bab00eeca
hex18e47aa088

106912456840 has 128 divisors (see below), whose sum is σ = 279624960000. Its totient is φ = 36032882688.

The previous prime is 106912456823. The next prime is 106912456841. The reversal of 106912456840 is 48654219601.

It is a happy number.

It is a super-2 number, since 2×1069124568402 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106912456841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4298761 + ... + 4323559.

It is an arithmetic number, because the mean of its divisors is an integer number (2184570000).

Almost surely, 2106912456840 is an apocalyptic number.

106912456840 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 106912456840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139812480000).

106912456840 is an abundant number, since it is smaller than the sum of its proper divisors (172712503160).

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

106912456840 is a wasteful number, since it uses less digits than its factorization.

106912456840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25079 (or 25075 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

It can be divided in two parts, 10691 and 2456840, that added together give a triangular number (2467531 = T2221).

The spelling of 106912456840 in words is "one hundred six billion, nine hundred twelve million, four hundred fifty-six thousand, eight hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 89 140 173 178 280 346 356 445 623 692 712 865 890 1211 1246 1384 1730 1780 2422 2492 3115 3460 3560 4844 4984 6055 6230 6920 9688 12110 12460 15397 24220 24799 24920 30794 48440 49598 61588 76985 99196 107779 123176 123995 153970 173593 198392 215558 247990 307940 347186 431116 495980 538895 615880 694372 862232 867965 991960 1077790 1388744 1735930 2155580 2207111 3471860 4290227 4311160 4414222 6943720 8580454 8828444 11035555 15449777 17160908 17656888 21451135 22071110 30031589 30899554 34321816 42902270 44142220 60063178 61799108 77248885 85804540 88284440 120126356 123598216 150157945 154497770 171609080 240252712 300315890 308995540 381830203 600631780 617991080 763660406 1201263560 1527320812 1909151015 2672811421 3054641624 3818302030 5345622842 7636604060 10691245684 13364057105 15273208120 21382491368 26728114210 53456228420 106912456840