Search a number
-
+
20041024525 = 524751168731
BaseRepresentation
bin10010101010100010…
…011100010000001101
31220201200201112022121
4102222202130100031
5312021000241100
613112352412541
71306430616634
oct225242342015
956650645277
1020041024525
1185546aa395
123a73847151
131b7503c8c2
14d8192451b
157c467151a
hex4aa89c40d

20041024525 has 12 divisors (see below), whose sum is σ = 24856248384. Its totient is φ = 16029350000.

The previous prime is 20041024517. The next prime is 20041024537. The reversal of 20041024525 is 52542014002.

It is not a de Polignac number, because 20041024525 - 23 = 20041024517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20041024525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34410 + ... + 203140.

It is an arithmetic number, because the mean of its divisors is an integer number (2071354032).

Almost surely, 220041024525 is an apocalyptic number.

20041024525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20041024525 is a deficient number, since it is larger than the sum of its proper divisors (4815223859).

20041024525 is a wasteful number, since it uses less digits than its factorization.

20041024525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173492 (or 173487 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 20041024525 its reverse (52542014002), we get a palindrome (72583038527).

The spelling of 20041024525 in words is "twenty billion, forty-one million, twenty-four thousand, five hundred twenty-five".

Divisors: 1 5 25 4751 23755 118775 168731 843655 4218275 801640981 4008204905 20041024525