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61948304886 = 23132271734961
BaseRepresentation
bin111001101100011010…
…000001110111110110
312220220021122221121110
4321230122001313312
52003332231224021
644243023055450
74322064621606
oct715432016766
9186807587543
1061948304886
11242aa226396
121000a441586
135ac32a4710
142dd9532c06
151928803476
hexe6c681df6

61948304886 has 32 divisors (see below), whose sum is σ = 133436808288. Its totient is φ = 19059632640.

The previous prime is 61948304867. The next prime is 61948304893. The reversal of 61948304886 is 68840384916.

It is a super-3 number, since 3×619483048863 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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, 1754446 + ... + 1789406.

It is an arithmetic number, because the mean of its divisors is an integer number (4169900259).

Almost surely, 261948304886 is an apocalyptic number.

61948304886 is an abundant number, since it is smaller than the sum of its proper divisors (71488503402).

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

61948304886 is a wasteful number, since it uses less digits than its factorization.

61948304886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57696.

The product of its (nonzero) digits is 7962624, while the sum is 57.

The spelling of 61948304886 in words is "sixty-one billion, nine hundred forty-eight million, three hundred four thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 13 26 39 78 22717 34961 45434 68151 69922 104883 136302 209766 295321 454493 590642 885963 908986 1363479 1771926 2726958 794209037 1588418074 2382627111 4765254222 10324717481 20649434962 30974152443 61948304886