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161350143108 = 223711331527557
BaseRepresentation
bin1001011001000100110…
…1111100110010000100
3120102110202202112011020
42112101031330302010
510120421114034413
6202042341311140
714441256405330
oct2262115746204
9512422675136
10161350143108
1162478a49710
122732ba054b0
13122a4bb017b
147b48d687c0
1542e5284c23
hex259137cc84

161350143108 has 96 divisors (see below), whose sum is σ = 470801200128. Its totient is φ = 41782435200.

The previous prime is 161350143091. The next prime is 161350143139. The reversal of 161350143108 is 801341053161.

161350143108 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42066 + ... + 569622.

It is an arithmetic number, because the mean of its divisors is an integer number (4904179168).

Almost surely, 2161350143108 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 161350143108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235400600064).

161350143108 is an abundant number, since it is smaller than the sum of its proper divisors (309451057020).

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

161350143108 is a wasteful number, since it uses less digits than its factorization.

161350143108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527913 (or 527911 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

Adding to 161350143108 its reverse (801341053161), we get a palindrome (962691196269).

The spelling of 161350143108 in words is "one hundred sixty-one billion, three hundred fifty million, one hundred forty-three thousand, one hundred eight".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 331 462 662 924 993 1324 1986 2317 3641 3972 4634 6951 7282 9268 10923 13902 14564 21846 25487 27804 43692 50974 76461 101948 152922 305844 527557 1055114 1582671 2110228 3165342 3692899 5803127 6330684 7385798 11078697 11606254 14771596 17409381 22157394 23212508 34818762 40621889 44314788 69637524 81243778 121865667 162487556 174621367 243731334 349242734 487462668 523864101 698485468 1047728202 1222349569 1920835037 2095456404 2444699138 3667048707 3841670074 4889398276 5762505111 7334097414 7683340148 11525010222 13445845259 14668194828 23050020444 26891690518 40337535777 53783381036 80675071554 161350143108