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51006010611008 = 267111639651689
BaseRepresentation
bin10111001100011110000110…
…01001001101010101000000
320200121010102120121100212102
423212033003021031111000
523141140302204023013
6300251500544045532
713513030330501325
oct1346170311152500
9220533376540772
1051006010611008
11152855892a1aa2
1258793819038a8
13225cb0003127b
14c849c0022b4c
155d6bb3e07d58
hex2e63c324d540

51006010611008 has 56 divisors (see below), whose sum is σ = 102728882111040. Its totient is φ = 25122185661440.

The previous prime is 51006010611007. The next prime is 51006010611053. The reversal of 51006010611008 is 80011601060015.

It is a super-2 number, since 2×510060106110082 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51006010611007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458828 + ... + 10110516.

Almost surely, 251006010611008 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 51006010611008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51364441055520).

51006010611008 is an abundant number, since it is smaller than the sum of its proper divisors (51722871500032).

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

51006010611008 is a wasteful number, since it uses less digits than its factorization.

51006010611008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9652935 (or 9652925 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

The spelling of 51006010611008 in words is "fifty-one trillion, six billion, ten million, six hundred eleven thousand, eight".

Divisors: 1 2 4 8 16 32 64 71 142 284 568 1136 1163 2272 2326 4544 4652 9304 18608 37216 74432 82573 165146 330292 660584 1321168 2642336 5284672 9651689 19303378 38606756 77213512 154427024 308854048 617708096 685269919 1370539838 2741079676 5482159352 10964318704 11224914307 21928637408 22449828614 43857274816 44899657228 89799314456 179598628912 359197257824 718394515648 796968915797 1593937831594 3187875663188 6375751326376 12751502652752 25503005305504 51006010611008