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51050391360 = 2635373142567
BaseRepresentation
bin101111100010110101…
…110010011101000000
311212202210022120200120
4233202311302131000
51314022400010420
635241403020240
73455035111143
oct574265623500
9155683276616
1051050391360
111a717684691
129a8880a680
134a77571487
14268403805a
1514dbbcbd40
hexbe2d72740

51050391360 has 112 divisors (see below), whose sum is σ = 162520676736. Its totient is φ = 13576845312.

The previous prime is 51050391331. The next prime is 51050391361. The reversal of 51050391360 is 6319305015.

51050391360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×510503913602 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51050391361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286797 + ... + 429363.

Almost surely, 251050391360 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 51050391360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81260338368).

51050391360 is an abundant number, since it is smaller than the sum of its proper divisors (111470285376).

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

51050391360 is a wasteful number, since it uses less digits than its factorization.

51050391360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142960 (or 142950 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 33.

Adding to 51050391360 its reverse (6319305015), we get a palindrome (57369696375).

The spelling of 51050391360 in words is "fifty-one billion, fifty million, three hundred ninety-one thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 373 480 746 960 1119 1492 1865 2238 2984 3730 4476 5595 5968 7460 8952 11190 11936 14920 17904 22380 23872 29840 35808 44760 59680 71616 89520 119360 142567 179040 285134 358080 427701 570268 712835 855402 1140536 1425670 1710804 2138505 2281072 2851340 3421608 4277010 4562144 5702680 6843216 8554020 9124288 11405360 13686432 17108040 22810720 27372864 34216080 45621440 53177491 68432160 106354982 136864320 159532473 212709964 265887455 319064946 425419928 531774910 638129892 797662365 850839856 1063549820 1276259784 1595324730 1701679712 2127099640 2552519568 3190649460 3403359424 4254199280 5105039136 6381298920 8508398560 10210078272 12762597840 17016797120 25525195680 51050391360