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401124530 = 25101397153
BaseRepresentation
bin10111111010001…
…010110010110010
31000221210020102002
4113322022302302
51310141441110
6103445254002
712640334162
oct2772126262
91027706362
10401124530
11196473884
12b2404302
13651463c1
143b3b85a2
1525336aa5
hex17e8acb2

401124530 has 16 divisors (see below), whose sum is σ = 729174744. Its totient is φ = 158860800.

The previous prime is 401124467. The next prime is 401124533. The reversal of 401124530 is 35421104.

It can be written as a sum of positive squares in 4 ways, for example, as 380991361 + 20133169 = 19519^2 + 4487^2 .

It is not an unprimeable number, because it can be changed into a prime (401124533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197567 + ... + 199586.

Almost surely, 2401124530 is an apocalyptic number.

401124530 is a deficient number, since it is larger than the sum of its proper divisors (328050214).

401124530 is a wasteful number, since it uses less digits than its factorization.

401124530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397261.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 401124530 is about 20028.0935188550. The cubic root of 401124530 is about 737.4961210176.

Adding to 401124530 its reverse (35421104), we get a palindrome (436545634).

The spelling of 401124530 in words is "four hundred one million, one hundred twenty-four thousand, five hundred thirty".

Divisors: 1 2 5 10 101 202 505 1010 397153 794306 1985765 3971530 40112453 80224906 200562265 401124530