Search a number
-
+
53415131 = 7112330161
BaseRepresentation
bin1100101111000…
…0110011011011
310201111202210012
43023300303123
5102133241011
65144512135
71216010150
oct313606333
9121452705
1053415131
1128173640
1215a7b64b
13b0b29b3
147146227
154a51a8b
hex32f0cdb

53415131 has 16 divisors (see below), whose sum is σ = 69493248. Its totient is φ = 39811200.

The previous prime is 53415121. The next prime is 53415133. The reversal of 53415131 is 13151435.

It is not a de Polignac number, because 53415131 - 214 = 53398747 is a prime.

It is a super-2 number, since 2×534151312 = 5706352439494322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 53415097 and 53415106.

It is not an unprimeable number, because it can be changed into a prime (53415133) 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, 13310 + ... + 16851.

It is an arithmetic number, because the mean of its divisors is an integer number (4343328).

Almost surely, 253415131 is an apocalyptic number.

53415131 is a deficient number, since it is larger than the sum of its proper divisors (16078117).

53415131 is a wasteful number, since it uses less digits than its factorization.

53415131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30202.

The product of its digits is 900, while the sum is 23.

The square root of 53415131 is about 7308.5655911403. The cubic root of 53415131 is about 376.6067496344.

Adding to 53415131 its reverse (13151435), we get a palindrome (66566566).

The spelling of 53415131 in words is "fifty-three million, four hundred fifteen thousand, one hundred thirty-one".

Divisors: 1 7 11 23 77 161 253 1771 30161 211127 331771 693703 2322397 4855921 7630733 53415131