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345161718751 = 8956314394787
BaseRepresentation
bin1010000010111010011…
…11011101101111011111
31012222220220200001020011
411001131033131233133
521123342400000001
6422322021304051
733636300126013
oct5013517355737
91188826601204
10345161718751
11123422879003
1256a89b65027
13267193b2905
14129c506a543
158ea23e3d51
hex505d3ddbdf

345161718751 has 16 divisors (see below), whose sum is σ = 349975987200. Its totient is φ = 340369446208.

The previous prime is 345161718749. The next prime is 345161718767. The reversal of 345161718751 is 157817161543.

It is a cyclic number.

It is not a de Polignac number, because 345161718751 - 21 = 345161718749 is a prime.

It is a super-2 number, since 2×3451617187512 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345161718695 and 345161718704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345161718701) 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, 72101580 + ... + 72106366.

It is an arithmetic number, because the mean of its divisors is an integer number (21873499200).

Almost surely, 2345161718751 is an apocalyptic number.

345161718751 is a deficient number, since it is larger than the sum of its proper divisors (4814268449).

345161718751 is a wasteful number, since it uses less digits than its factorization.

345161718751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6878.

The product of its digits is 705600, while the sum is 49.

The spelling of 345161718751 in words is "three hundred forty-five billion, one hundred sixty-one million, seven hundred eighteen thousand, seven hundred fifty-one".

Divisors: 1 89 563 1439 4787 50107 128071 426043 810157 2695081 6888493 72103973 239862209 613075877 3878221559 345161718751