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44991924770 = 251317137181821
BaseRepresentation
bin101001111001101110…
…100100101000100010
311022010120020120221002
4221321232210220202
51214120413043040
632400301032002
73151641023222
oct517156445042
9138116216832
1044991924770
1118098850001
128877855602
1343203446c0
14226b56a082
151284d95a15
hexa79ba4a22

44991924770 has 128 divisors (see below), whose sum is σ = 93647316672. Its totient is φ = 15416524800.

The previous prime is 44991924763. The next prime is 44991924797. The reversal of 44991924770 is 7742919944.

It is a Cunningham number, because it is equal to 2121132+1.

It can be written as a sum of positive squares in 32 ways, for example, as 11596920721 + 33395004049 = 107689^2 + 182743^2 .

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 63 ways as a sum of consecutive naturals, for example, 54800960 + ... + 54801780.

Almost surely, 244991924770 is an apocalyptic number.

44991924770 is an abundant number, since it is smaller than the sum of its proper divisors (48655391902).

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

44991924770 is a wasteful number, since it uses less digits than its factorization.

44991924770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 44991924770 in words is "forty-four billion, nine hundred ninety-one million, nine hundred twenty-four thousand, seven hundred seventy".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 137 170 181 221 274 362 442 685 821 905 1105 1370 1642 1781 1810 2210 2329 2353 3077 3562 4105 4658 4706 6154 8210 8905 10673 11645 11765 13957 15385 17810 21346 23290 23530 24797 27914 30277 30770 40001 49594 53365 60554 69785 80002 106730 112477 123985 139570 148601 151385 181441 200005 224954 247970 297202 302770 322361 362882 400010 421549 562385 644722 743005 843098 907205 1124770 1462201 1486010 1611805 1814410 1912109 1931813 2107745 2526217 2924402 3223610 3824218 3863626 4215490 5052434 5480137 7311005 9560545 9659065 10960274 12631085 14622010 19121090 19318130 20358337 24857417 25262170 27400685 32840821 40716674 49714834 54801370 65681642 101791685 124287085 164204105 203583370 248574170 264658381 328408210 346091729 529316762 692183458 1323291905 1730458645 2646583810 3460917290 4499192477 8998384954 22495962385 44991924770