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61051060050 = 23523761180331
BaseRepresentation
bin111000110110111011…
…010011111101010010
312211120202100012002020
4320312323103331102
52000013032410200
644014012032310
74260621306501
oct706673237522
9184522305066
1061051060050
1123989806032
12b9b9a62696
1359ac434106
142d522d2838
1518c4b6cea0
hexe36ed3f52

61051060050 has 96 divisors (see below), whose sum is σ = 158048735424. Its totient is φ = 15580512000.

The previous prime is 61051060039. The next prime is 61051060051. The reversal of 61051060050 is 5006015016.

It is a self number, because there is not a number n which added to its sum of digits gives 61051060050.

It is not an unprimeable number, because it can be changed into a prime (61051060051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 248385 + ... + 428715.

It is an arithmetic number, because the mean of its divisors is an integer number (1646340994).

Almost surely, 261051060050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61051060050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79024367712).

61051060050 is an abundant number, since it is smaller than the sum of its proper divisors (96997675374).

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

61051060050 is a wasteful number, since it uses less digits than its factorization.

61051060050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180444 (or 180439 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 61051060050 its reverse (5006015016), we get a palindrome (66057075066).

The spelling of 61051060050 in words is "sixty-one billion, fifty-one million, sixty thousand, fifty".

Divisors: 1 2 3 5 6 10 15 25 30 37 50 61 74 75 111 122 150 183 185 222 305 366 370 555 610 915 925 1110 1525 1830 1850 2257 2775 3050 4514 4575 5550 6771 9150 11285 13542 22570 33855 56425 67710 112850 169275 180331 338550 360662 540993 901655 1081986 1803310 2704965 4508275 5409930 6672247 9016550 11000191 13344494 13524825 20016741 22000382 27049650 33000573 33361235 40033482 55000955 66001146 66722470 100083705 110001910 165002865 166806175 200167410 275004775 330005730 333612350 407007067 500418525 550009550 814014134 825014325 1000837050 1221021201 1650028650 2035035335 2442042402 4070070670 6105106005 10175176675 12210212010 20350353350 30525530025 61051060050