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51026704290 = 23251065153231
BaseRepresentation
bin101111100001011011…
…011011011110100010
311212201010202011010200
4233201123123132202
51314000314014130
635235155210030
73454326554502
oct574133333642
9155633664120
1051026704290
111a7052761a1
129a808a6916
134a72699a63
142680c2da02
1514d9a9d760
hexbe16db7a2

51026704290 has 48 divisors (see below), whose sum is σ = 132684379776. Its totient is φ = 13605588000.

The previous prime is 51026704279. The next prime is 51026704291. The reversal of 51026704290 is 9240762015.

It is not an unprimeable number, because it can be changed into a prime (51026704291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 931975 + ... + 985205.

It is an arithmetic number, because the mean of its divisors is an integer number (2764257912).

Almost surely, 251026704290 is an apocalyptic number.

51026704290 is an abundant number, since it is smaller than the sum of its proper divisors (81657675486).

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

51026704290 is a wasteful number, since it uses less digits than its factorization.

51026704290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63895 (or 63892 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 51026704290 in words is "fifty-one billion, twenty-six million, seven hundred four thousand, two hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 10651 21302 31953 53231 53255 63906 95859 106462 106510 159693 159765 191718 266155 319386 319530 479079 479295 532310 798465 958158 958590 1596930 2395395 4790790 566963381 1133926762 1700890143 2834816905 3401780286 5102670429 5669633810 8504450715 10205340858 17008901430 25513352145 51026704290