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61030105260 = 22355331096173
BaseRepresentation
bin111000110101101011…
…011000000010101100
312211112021220120111220
4320311223120002230
51444442201332020
644011542543340
74260245223015
oct706553300254
9184467816456
1061030105260
11239789a3423
12b9b2a37b50
1359a7ca8227
142d4d5da00c
1518c2dce240
hexe35ad80ac

61030105260 has 96 divisors (see below), whose sum is σ = 174192742080. Its totient is φ = 15959903232.

The previous prime is 61030105229. The next prime is 61030105291. The reversal of 61030105260 is 6250103016.

It is an interprime number because it is at equal distance from previous prime (61030105229) and next prime (61030105291).

It is a self number, because there is not a number n which added to its sum of digits gives 61030105260.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9883534 + ... + 9889706.

It is an arithmetic number, because the mean of its divisors is an integer number (1814507730).

Almost surely, 261030105260 is an apocalyptic number.

61030105260 is a gapful number since it is divisible by the number (60) 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 61030105260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87096371040).

61030105260 is an abundant number, since it is smaller than the sum of its proper divisors (113162636820).

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

61030105260 is a wasteful number, since it uses less digits than its factorization.

61030105260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9347 (or 9345 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 61030105260 its reverse (6250103016), we get a palindrome (67280208276).

The spelling of 61030105260 in words is "sixty-one billion, thirty million, one hundred five thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 53 60 106 159 212 265 318 530 636 795 1060 1590 3109 3180 6173 6218 9327 12346 12436 15545 18519 18654 24692 30865 31090 37038 37308 46635 61730 62180 74076 92595 93270 123460 164777 185190 186540 327169 329554 370380 494331 654338 659108 823885 981507 988662 1308676 1635845 1647770 1963014 1977324 2471655 3271690 3295540 3926028 4907535 4943310 6543380 9815070 9886620 19191857 19630140 38383714 57575571 76767428 95959285 115151142 191918570 230302284 287877855 383837140 575755710 1017168421 1151511420 2034336842 3051505263 4068673684 5085842105 6103010526 10171684210 12206021052 15257526315 20343368420 30515052630 61030105260