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26676145620 = 223251812273607
BaseRepresentation
bin11000110110000001…
…011010110111010100
32112212002212121100100
4120312001122313110
5414113043124440
620131014214100
71633026332205
oct306601326724
975762777310
1026676145620
1110349a97043
125205954330
132691880167
141410c1d5ac
15a61e13230
hex63605add4

26676145620 has 144 divisors (see below), whose sum is σ = 81745792128. Its totient is φ = 7041219840.

The previous prime is 26676145607. The next prime is 26676145621. The reversal of 26676145620 is 2654167662.

26676145620 is a `hidden beast` number, since 2 + 6 + 6 + 7 + 6 + 14 + 5 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26676145621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7393857 + ... + 7397463.

It is an arithmetic number, because the mean of its divisors is an integer number (567679112).

Almost surely, 226676145620 is an apocalyptic number.

26676145620 is a gapful number since it is divisible by the number (20) 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 26676145620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40872896064).

26676145620 is an abundant number, since it is smaller than the sum of its proper divisors (55069646508).

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

26676145620 is a wasteful number, since it uses less digits than its factorization.

26676145620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030 (or 4025 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 26676145620 in words is "twenty-six billion, six hundred seventy-six million, one hundred forty-five thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 181 227 362 454 543 681 724 905 908 1086 1135 1362 1629 1810 2043 2172 2270 2715 2724 3258 3405 3607 3620 4086 4540 5430 6516 6810 7214 8145 8172 10215 10821 10860 13620 14428 16290 18035 20430 21642 32463 32580 36070 40860 41087 43284 54105 64926 72140 82174 108210 123261 129852 162315 164348 205435 216420 246522 324630 369783 410870 493044 616305 649260 652867 739566 818789 821740 1232610 1305734 1479132 1637578 1848915 1958601 2456367 2465220 2611468 3264335 3275156 3697830 3917202 4093945 4912734 5875803 6528670 7369101 7395660 7834404 8187890 9793005 9825468 11751606 12281835 13057340 14738202 16375780 19586010 23503212 24563670 29379015 29476404 36845505 39172020 49127340 58758030 73691010 117516060 147382020 148200809 296401618 444602427 592803236 741004045 889204854 1333807281 1482008090 1778409708 2223012135 2667614562 2964016180 4446024270 5335229124 6669036405 8892048540 13338072810 26676145620