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51790604768 = 25711313115619
BaseRepresentation
bin110000001110111101…
…011110100111100000
311221200101011022120222
4300032331132213200
51322031343323033
635443044222212
73512263606550
oct601675364740
9157611138528
1051790604768
111aa6749aa01
12a05469a968
134b64a20586
14271447d160
151531b94598
hexc0ef5e9e0

51790604768 has 96 divisors (see below), whose sum is σ = 118465079040. Its totient is φ = 21830215680.

The previous prime is 51790604743. The next prime is 51790604779. The reversal of 51790604768 is 86740609715.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3308063 + ... + 3323681.

It is an arithmetic number, because the mean of its divisors is an integer number (1234011240).

Almost surely, 251790604768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51790604768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59232539520).

51790604768 is an abundant number, since it is smaller than the sum of its proper divisors (66674474272).

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

51790604768 is a wasteful number, since it uses less digits than its factorization.

51790604768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15880 (or 15872 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 51790604768 in words is "fifty-one billion, seven hundred ninety million, six hundred four thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 113 131 224 226 262 452 524 791 904 917 1048 1582 1808 1834 2096 3164 3616 3668 4192 6328 7336 12656 14672 14803 15619 25312 29344 29606 31238 59212 62476 103621 109333 118424 124952 207242 218666 236848 249904 414484 437332 473696 499808 828968 874664 1657936 1749328 1764947 2046089 3315872 3498656 3529894 4092178 7059788 8184356 12354629 14119576 14322623 16368712 24709258 28239152 28645246 32737424 49418516 56478304 57290492 65474848 98837032 114580984 197674064 229161968 231208057 395348128 458323936 462416114 924832228 1618456399 1849664456 3236912798 3699328912 6473825596 7398657824 12947651192 25895302384 51790604768