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2025442431 = 32659341501
BaseRepresentation
bin111100010111001…
…1100110001111111
312020011020010200100
41320232130301333
513122003124211
6532552132143
7101122655655
oct17056346177
95204203610
102025442431
1194a344971
12486397053
13263814a5c
14152ddcdd5
15bcc3b156
hex78b9cc7f

2025442431 has 12 divisors (see below), whose sum is σ = 2930087160. Its totient is φ = 1348242000.

The previous prime is 2025442429. The next prime is 2025442439. The reversal of 2025442431 is 1342445202.

2025442431 is a `hidden beast` number, since 202 + 5 + 4 + 424 + 31 = 666.

It is not a de Polignac number, because 2025442431 - 21 = 2025442429 is a prime.

It is a super-2 number, since 2×20254424312 = 8204834082590379522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2025442395 and 2025442404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025442439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164820 + ... + 176681.

It is an arithmetic number, because the mean of its divisors is an integer number (244173930).

Almost surely, 22025442431 is an apocalyptic number.

2025442431 is a deficient number, since it is larger than the sum of its proper divisors (904644729).

2025442431 is a wasteful number, since it uses less digits than its factorization.

2025442431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342166 (or 342163 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2025442431 is about 45004.9156315174. The cubic root of 2025442431 is about 1265.2411297018.

Adding to 2025442431 its reverse (1342445202), we get a palindrome (3367887633).

The spelling of 2025442431 in words is "two billion, twenty-five million, four hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 3 9 659 1977 5931 341501 1024503 3073509 225049159 675147477 2025442431