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1561341050060 = 22511171921156429
BaseRepresentation
bin10110101110000111001…
…011011011110011001100
312112021002112122100022112
4112232013023123303030
5201040111302100220
63153134205203152
7220542325644131
oct26560713336314
95467075570275
101561341050060
11552185356190
12212721b604b8
13b430695222c
14557d8288588
152a9326ea5c5
hex16b872dbccc

1561341050060 has 144 divisors (see below), whose sum is σ = 3997121657760. Its totient is φ = 506237921280.

The previous prime is 1561341050051. The next prime is 1561341050089. The reversal of 1561341050060 is 600501431651.

It is a junction number, because it is equal to n+sod(n) for n = 1561341049999 and 1561341050026.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 771926 + ... + 1928354.

It is an arithmetic number, because the mean of its divisors is an integer number (27757789290).

Almost surely, 21561341050060 is an apocalyptic number.

1561341050060 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 1561341050060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1998560828880).

1561341050060 is an abundant number, since it is smaller than the sum of its proper divisors (2435780607700).

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

1561341050060 is a wasteful number, since it uses less digits than its factorization.

1561341050060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156504 (or 1156483 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 1561341050060 in words is "one trillion, five hundred sixty-one billion, three hundred forty-one million, fifty thousand, sixty".

Divisors: 1 2 4 5 10 11 17 19 20 22 34 38 44 55 68 76 85 95 110 170 187 190 209 220 323 340 361 374 380 418 646 722 748 836 935 1045 1292 1444 1615 1805 1870 2090 3230 3553 3610 3740 3971 4180 6137 6460 7106 7220 7942 12274 14212 15884 17765 19855 24548 30685 35530 39710 61370 67507 71060 79420 122740 135014 270028 337535 675070 1156429 1350140 2312858 4625716 5782145 11564290 12720719 19659293 21972151 23128580 25441438 39318586 43944302 50882876 63603595 78637172 87888604 98296465 109860755 127207190 196592930 216252223 219721510 241693661 254414380 373526567 393185860 417470869 432504446 439443020 483387322 747053134 834941738 865008892 966774644 1081261115 1208468305 1494106268 1669883476 1867632835 2087354345 2162522230 2416936610 3735265670 4108792237 4174708690 4325044460 4592179559 4833873220 7097004773 7470531340 8217584474 8349417380 9184359118 14194009546 16435168948 18368718236 20543961185 22960897795 28388019092 35485023865 41087922370 45921795590 70970047730 78067052503 82175844740 91843591180 141940095460 156134105006 312268210012 390335262515 780670525030 1561341050060