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160420159705 = 5132985103533
BaseRepresentation
bin1001010101100111001…
…0010110000011011001
3120100001221211110202111
42111121302112003121
510112020030102310
6201410200432321
714406234600421
oct2253162260331
9510057743674
10160420159705
1162040aa8393
12271104786a1
1312187319230
147a9b645481
15428d7d428a
hex2559c960d9

160420159705 has 16 divisors (see below), whose sum is σ = 214460905680. Its totient is φ = 114379147008.

The previous prime is 160420159693. The next prime is 160420159723. The reversal of 160420159705 is 507951024061.

It can be written as a sum of positive squares in 8 ways, for example, as 13314159769 + 147105999936 = 115387^2 + 383544^2 .

It is a cyclic number.

It is not a de Polignac number, because 160420159705 - 231 = 158272676057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42549882 + ... + 42553651.

It is an arithmetic number, because the mean of its divisors is an integer number (13403806605).

Almost surely, 2160420159705 is an apocalyptic number.

It is an amenable number.

160420159705 is a deficient number, since it is larger than the sum of its proper divisors (54040745975).

160420159705 is a wasteful number, since it uses less digits than its factorization.

160420159705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85103580.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 160420159705 in words is "one hundred sixty billion, four hundred twenty million, one hundred fifty-nine thousand, seven hundred five".

Divisors: 1 5 13 29 65 145 377 1885 85103533 425517665 1106345929 2468002457 5531729645 12340012285 32084031941 160420159705