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20628110700 = 22335226932837
BaseRepresentation
bin10011001101100001…
…111111110101101100
31222020121102121011000
4103031201333311230
5314221244020300
613250524000300
71330120022301
oct231541776554
958217377130
1020628110700
11882603797a
123bb8390090
131c39866582
14dd98a90a8
1580ae8cc00
hex4cd87fd6c

20628110700 has 144 divisors (see below), whose sum is σ = 66363564960. Its totient is φ = 5496848640.

The previous prime is 20628110693. The next prime is 20628110729. The reversal of 20628110700 is 701182602.

20628110700 is a `hidden beast` number, since 20 + 628 + 1 + 10 + 7 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7269682 + ... + 7272518.

It is an arithmetic number, because the mean of its divisors is an integer number (460858090).

Almost surely, 220628110700 is an apocalyptic number.

20628110700 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 20628110700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33181782480).

20628110700 is an abundant number, since it is smaller than the sum of its proper divisors (45735454260).

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

20628110700 is a wasteful number, since it uses less digits than its factorization.

20628110700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553 (or 5540 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

It can be divided in two parts, 20628 and 110700, that added together give a triangular number (131328 = T512).

The spelling of 20628110700 in words is "twenty billion, six hundred twenty-eight million, one hundred ten thousand, seven hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 90 100 108 135 150 180 225 270 300 450 540 675 900 1350 2693 2700 2837 5386 5674 8079 8511 10772 11348 13465 14185 16158 17022 24237 25533 26930 28370 32316 34044 40395 42555 48474 51066 53860 56740 67325 70925 72711 76599 80790 85110 96948 102132 121185 127665 134650 141850 145422 153198 161580 170220 201975 212775 242370 255330 269300 283700 290844 306396 363555 382995 403950 425550 484740 510660 605925 638325 727110 765990 807900 851100 1211850 1276650 1454220 1531980 1817775 1914975 2423700 2553300 3635550 3829950 7271100 7640041 7659900 15280082 22920123 30560164 38200205 45840246 68760369 76400410 91680492 114600615 137520738 152800820 191001025 206281107 229201230 275041476 343801845 382002050 412562214 458402460 573003075 687603690 764004100 825124428 1031405535 1146006150 1375207380 1719009225 2062811070 2292012300 3438018450 4125622140 5157027675 6876036900 10314055350 20628110700