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10405161 = 321326841
BaseRepresentation
bin100111101100…
…010100101001
3201120122012100
4213230110221
510130431121
61011004013
7154304514
oct47542451
921518170
1010405161
115967608
123599609
132204100
14154bd7b
15da8026
hex9ec529

10405161 has 18 divisors (see below), whose sum is σ = 16277118. Its totient is φ = 6402240.

The previous prime is 10405133. The next prime is 10405193. The reversal of 10405161 is 16150401.

10405161 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 197136 + 10208025 = 444^2 + 3195^2 .

It is not a de Polignac number, because 10405161 - 219 = 9880873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10405111) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1900 + ... + 4941.

Almost surely, 210405161 is an apocalyptic number.

It is an amenable number.

10405161 is a deficient number, since it is larger than the sum of its proper divisors (5871957).

10405161 is a wasteful number, since it uses less digits than its factorization.

10405161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6873 (or 6857 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 10405161 is about 3225.7031791533. The cubic root of 10405161 is about 218.3146775557.

Adding to 10405161 its reverse (16150401), we get a palindrome (26555562).

The spelling of 10405161 in words is "ten million, four hundred five thousand, one hundred sixty-one".

Divisors: 1 3 9 13 39 117 169 507 1521 6841 20523 61569 88933 266799 800397 1156129 3468387 10405161