Search a number
-
+
161430410 = 2516143041
BaseRepresentation
bin10011001111100…
…11101110001010
3102020202111220002
421213303232022
5312311233120
624004003002
74000064411
oct1147635612
9366674802
10161430410
118313a069
1246090462
13275a186b
1417622478
15e28b375
hex99f3b8a

161430410 has 8 divisors (see below), whose sum is σ = 290574756. Its totient is φ = 64572160.

The previous prime is 161430391. The next prime is 161430413. The reversal of 161430410 is 14034161.

It can be written as a sum of positive squares in 2 ways, for example, as 131629729 + 29800681 = 11473^2 + 5459^2 .

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

It is not an unprimeable number, because it can be changed into a prime (161430413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8071511 + ... + 8071530.

Almost surely, 2161430410 is an apocalyptic number.

161430410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161430410 is a deficient number, since it is larger than the sum of its proper divisors (129144346).

161430410 is a wasteful number, since it uses less digits than its factorization.

161430410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16143048.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 161430410 is about 12705.5267501981. The cubic root of 161430410 is about 544.4965302414.

Adding to 161430410 its reverse (14034161), we get a palindrome (175464571).

The spelling of 161430410 in words is "one hundred sixty-one million, four hundred thirty thousand, four hundred ten".

Divisors: 1 2 5 10 16143041 32286082 80715205 161430410