Search a number
-
+
161353153 = 1312899629
BaseRepresentation
bin10011001111000…
…00110111000001
3102020121120220201
421213200313001
5312301300103
624002205201
73666323233
oct1147406701
9366546821
10161353153
1183097015
1246053801
1327575650
1417602253
15e27351d
hex99e0dc1

161353153 has 8 divisors (see below), whose sum is σ = 173917800. Its totient is φ = 148810368.

The previous prime is 161353151. The next prime is 161353183. The reversal of 161353153 is 351353161.

It can be written as a sum of positive squares in 4 ways, for example, as 68095504 + 93257649 = 8252^2 + 9657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161353153 - 21 = 161353151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161353151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11943 + ... + 21571.

It is an arithmetic number, because the mean of its divisors is an integer number (21739725).

Almost surely, 2161353153 is an apocalyptic number.

161353153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

161353153 is a deficient number, since it is larger than the sum of its proper divisors (12564647).

161353153 is a wasteful number, since it uses less digits than its factorization.

161353153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10931.

The product of its digits is 4050, while the sum is 28.

The square root of 161353153 is about 12702.4860952492. The cubic root of 161353153 is about 544.4096550757.

The spelling of 161353153 in words is "one hundred sixty-one million, three hundred fifty-three thousand, one hundred fifty-three".

Divisors: 1 13 1289 9629 16757 125177 12411781 161353153