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20076305706 = 23101391223
BaseRepresentation
bin10010101100101001…
…000001110100101010
31220211011010000000000
4102230221001310222
5312104013240311
613120052523430
71310336532342
oct225451016452
956734100000
1020076305706
118572607696
123a83620576
131b7c443642
14d864a9d22
157c77e0056
hex4aca41d2a

20076305706 has 88 divisors (see below), whose sum is σ = 45533607840. Its totient is φ = 6638524776.

The previous prime is 20076305701. The next prime is 20076305723. The reversal of 20076305706 is 60750367002.

It is a happy number.

20076305706 is a `hidden beast` number, since 20 + 0 + 7 + 63 + 0 + 570 + 6 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20076305701) by changing a digit.

It is a polite number, since it can be written in 43 ways as a sum of consecutive naturals, for example, 16415011 + ... + 16416233.

Almost surely, 220076305706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20076305706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22766803920).

20076305706 is an abundant number, since it is smaller than the sum of its proper divisors (25457302134).

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

20076305706 is an equidigital number, since it uses as much as digits as its factorization.

20076305706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The spelling of 20076305706 in words is "twenty billion, seventy-six million, three hundred five thousand, seven hundred six".

Divisors: 1 2 3 6 9 18 27 54 81 139 162 243 278 417 486 729 834 1223 1251 1458 2187 2446 2502 3669 3753 4374 6561 7338 7506 11007 11259 13122 19683 22014 22518 33021 33777 39366 59049 66042 67554 99063 101331 118098 169997 198126 202662 297189 303993 339994 509991 594378 607986 891567 911979 1019982 1529973 1783134 1823958 2674701 2735937 3059946 4589919 5349402 5471874 8024103 8207811 9179838 13769757 16048206 16415622 24072309 27539514 41309271 48144618 72216927 82618542 123927813 144433854 247855626 371783439 743566878 1115350317 2230700634 3346050951 6692101902 10038152853 20076305706