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23661208130680 = 23519376113794049
BaseRepresentation
bin1010110000101000011011…
…11001111101010001111000
310002202222201021111001002001
411120110031321331101320
511100131123240140210
6122153450422350344
74661315536452421
oct530241571752170
9102688637431061
1023661208130680
1175a273116387a
1227a184a88b3b4
13102831c5ab533
145bb2cc4d6648
152b0737c9003a
hex15850de7d478

23661208130680 has 128 divisors (see below), whose sum is σ = 58497807240000. Its totient is φ = 8581001379840.

The previous prime is 23661208130633. The next prime is 23661208130683. The reversal of 23661208130680 is 8603180216632.

It is a self number, because there is not a number n which added to its sum of digits gives 23661208130680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23661208130683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5181705 + ... + 8612344.

Almost surely, 223661208130680 is an apocalyptic number.

23661208130680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23661208130680 is an abundant number, since it is smaller than the sum of its proper divisors (34836599109320).

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

23661208130680 is a wasteful number, since it uses less digits than its factorization.

23661208130680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13794177 (or 13794173 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 23661208130680 in words is "twenty-three trillion, six hundred sixty-one billion, two hundred eight million, one hundred thirty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 37 38 40 61 74 76 95 122 148 152 185 190 244 296 305 370 380 488 610 703 740 760 1159 1220 1406 1480 2257 2318 2440 2812 3515 4514 4636 5624 5795 7030 9028 9272 11285 11590 14060 18056 22570 23180 28120 42883 45140 46360 85766 90280 171532 214415 343064 428830 857660 1715320 13794049 27588098 55176196 68970245 110352392 137940490 262086931 275880980 510379813 524173862 551761960 841436989 1020759626 1048347724 1310434655 1682873978 2041519252 2096695448 2551899065 2620869310 3365747956 4083038504 4207184945 5103798130 5241738620 6731495912 8414369890 9697216447 10207596260 10483477240 15987302791 16828739780 19394432894 20415192520 31133168593 31974605582 33657479560 38788865788 48486082235 62266337186 63949211164 77577731576 79936513955 96972164470 124532674372 127898422328 155665842965 159873027910 193944328940 249065348744 311331685930 319746055820 387888657880 591530203267 622663371860 639492111640 1183060406534 1245326743720 2366120813068 2957651016335 4732241626136 5915302032670 11830604065340 23661208130680