Search a number
-
+
121350923680 = 2557195702581
BaseRepresentation
bin111000100000100010…
…1000010010110100000
3102121020011011122101211
41301001011002112200
53442011314024210
6131425311235504
711524121555260
oct1610105022640
9377204148354
10121350923680
1147512484078
121b628218b94
13b59c041cac
145c329217a0
1532538a438a
hex1c411425a0

121350923680 has 96 divisors (see below), whose sum is σ = 344892159360. Its totient is φ = 39416232960.

The previous prime is 121350923653. The next prime is 121350923711. The reversal of 121350923680 is 86329053121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2830011 + ... + 2872570.

It is an arithmetic number, because the mean of its divisors is an integer number (3592626660).

Almost surely, 2121350923680 is an apocalyptic number.

121350923680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121350923680 is an abundant number, since it is smaller than the sum of its proper divisors (223541235680).

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

121350923680 is a wasteful number, since it uses less digits than its factorization.

121350923680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5702622 (or 5702614 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 121350923680 in words is "one hundred twenty-one billion, three hundred fifty million, nine hundred twenty-three thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 56 70 76 80 95 112 133 140 152 160 190 224 266 280 304 380 532 560 608 665 760 1064 1120 1330 1520 2128 2660 3040 4256 5320 10640 21280 5702581 11405162 22810324 28512905 39918067 45620648 57025810 79836134 91241296 108349039 114051620 159672268 182482592 199590335 216698078 228103240 319344536 399180670 433396156 456206480 541745195 638689072 758443273 798361340 866792312 912412960 1083490390 1277378144 1516886546 1596722680 1733584624 2166980780 3033773092 3193445360 3467169248 3792216365 4333961560 6067546184 6386890720 7584432730 8667923120 12135092368 15168865460 17335846240 24270184736 30337730920 60675461840 121350923680