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51304077270 = 235531367453
BaseRepresentation
bin101111110001111101…
…100001011111010110
311220102110200011100000
4233301331201133112
51320032320433040
635322504232130
73464235314205
oct576175413726
9156373604300
1051304077270
111a8378a5666
129b3976b646
134ab7ca4794
1426a99d323c
1515040dd130
hexbf1f617d6

51304077270 has 96 divisors (see below), whose sum is σ = 138775002912. Its totient is φ = 13637175552.

The previous prime is 51304077269. The next prime is 51304077367. The reversal of 51304077270 is 7277040315.

51304077270 is a `hidden beast` number, since 513 + 0 + 4 + 0 + 7 + 72 + 70 = 666.

It is a super-2 number, since 2×513040772702 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 726864 + ... + 794316.

It is an arithmetic number, because the mean of its divisors is an integer number (1445572947).

Almost surely, 251304077270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51304077270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69387501456).

51304077270 is an abundant number, since it is smaller than the sum of its proper divisors (87470925642).

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

51304077270 is a wasteful number, since it uses less digits than its factorization.

51304077270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67788 (or 67776 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The spelling of 51304077270 in words is "fifty-one billion, three hundred four million, seventy-seven thousand, two hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 313 405 486 626 810 939 1215 1565 1878 2430 2817 3130 4695 5634 8451 9390 14085 16902 25353 28170 42255 50706 67453 76059 84510 126765 134906 152118 202359 253530 337265 380295 404718 607077 674530 760590 1011795 1214154 1821231 2023590 3035385 3642462 5463693 6070770 9106155 10927386 16391079 18212310 21112789 27318465 32782158 42225578 54636930 63338367 81955395 105563945 126676734 163910790 190015101 211127890 316691835 380030202 570045303 633383670 950075505 1140090606 1710135909 1900151010 2850226515 3420271818 5130407727 5700453030 8550679545 10260815454 17101359090 25652038635 51304077270