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51060610068 = 223132937330259
BaseRepresentation
bin101111100011011100…
…110001010000010100
311212210111112202010020
4233203130301100110
51314033004010233
635242410025140
73455221011246
oct574334612024
9155714482106
1051060610068
111a7224240a6
129a901181b0
134a7970b750
142685538096
1514dca499b3
hexbe3731414

51060610068 has 96 divisors (see below), whose sum is σ = 133090742400. Its totient is φ = 15128031744.

The previous prime is 51060610063. The next prime is 51060610087. The reversal of 51060610068 is 86001606015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51060610063) by changing a digit.

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, 1672323 + ... + 1702581.

It is an arithmetic number, because the mean of its divisors is an integer number (1386361900).

Almost surely, 251060610068 is an apocalyptic number.

51060610068 is a gapful number since it is divisible by the number (58) 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 51060610068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66545371200).

51060610068 is an abundant number, since it is smaller than the sum of its proper divisors (82030132332).

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

51060610068 is a wasteful number, since it uses less digits than its factorization.

51060610068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30681 (or 30679 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 51060610068 in words is "fifty-one billion, sixty million, six hundred ten thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 29 39 52 58 78 87 116 156 174 348 373 377 746 754 1119 1131 1492 1508 2238 2262 4476 4524 4849 9698 10817 14547 19396 21634 29094 30259 32451 43268 58188 60518 64902 90777 121036 129804 140621 181554 281242 363108 393367 421863 562484 786734 843726 877511 1180101 1573468 1687452 1755022 2360202 2632533 3510044 4720404 5265066 10530132 11286607 11407643 22573214 22815286 33859821 34222929 45146428 45630572 67719642 68445858 135439284 136891716 146725891 293451782 327311603 440177673 586903564 654623206 880355346 981934809 1309246412 1760710692 1963869618 3927739236 4255050839 8510101678 12765152517 17020203356 25530305034 51060610068