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50680161 = 34721132
BaseRepresentation
bin1100000101010…
…1000101100001
310112100211010000
43001111011201
5100433231121
65010130213
71153526400
oct301250541
9115324100
1050680161
1126675834
1214b80969
13a665b7c
146a33637
1546b1526
hex3055161

50680161 has 45 divisors (see below), whose sum is σ = 88854051. Its totient is φ = 28703808.

The previous prime is 50680151. The next prime is 50680183. The reversal of 50680161 is 16108605.

The square root of 50680161 is 7119.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 893025 + 49787136 = 945^2 + 7056^2 .

It is not a de Polignac number, because 50680161 - 25 = 50680129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (50680151) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 448441 + ... + 448553.

Almost surely, 250680161 is an apocalyptic number.

50680161 is the 7119-th square number.

50680161 is the 3560-th centered octagonal number.

It is an amenable number.

50680161 is a deficient number, since it is larger than the sum of its proper divisors (38173890).

50680161 is an equidigital number, since it uses as much as digits as its factorization.

50680161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The cubic root of 50680161 is about 370.0661216136.

Adding to 50680161 its reverse (16108605), we get a palindrome (66788766).

The spelling of 50680161 in words is "fifty million, six hundred eighty thousand, one hundred sixty-one".

Divisors: 1 3 7 9 21 27 49 63 81 113 147 189 339 441 567 791 1017 1323 2373 3051 3969 5537 7119 9153 12769 16611 21357 38307 49833 64071 89383 114921 149499 268149 344763 448497 625681 804447 1034289 1877043 2413341 5631129 7240023 16893387 50680161