Search a number
-
+
158935161 = 3711688031
BaseRepresentation
bin10010111100100…
…10100001111001
3102002001202001110
421132102201321
5311141411121
623434310533
73636632550
oct1136224171
9362052043
10158935161
1181795380
1245288449
1326c09b98
1417172d97
15de46d76
hex9792879

158935161 has 16 divisors (see below), whose sum is σ = 264204288. Its totient is φ = 82563600.

The previous prime is 158935157. The next prime is 158935169. The reversal of 158935161 is 161539851.

158935161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 158935161 - 22 = 158935157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158935169) 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, 343785 + ... + 344246.

It is an arithmetic number, because the mean of its divisors is an integer number (16512768).

Almost surely, 2158935161 is an apocalyptic number.

158935161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

158935161 is a deficient number, since it is larger than the sum of its proper divisors (105269127).

158935161 is a wasteful number, since it uses less digits than its factorization.

158935161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688052.

The product of its digits is 32400, while the sum is 39.

The square root of 158935161 is about 12606.9489171647. The cubic root of 158935161 is about 541.6765009444.

The spelling of 158935161 in words is "one hundred fifty-eight million, nine hundred thirty-five thousand, one hundred sixty-one".

Divisors: 1 3 7 11 21 33 77 231 688031 2064093 4816217 7568341 14448651 22705023 52978387 158935161