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20363430025 = 5217194161507
BaseRepresentation
bin10010111101110000…
…010100100010001001
31221120011101102112001
4102331300110202021
5313201014230100
613204350551001
71320424204441
oct227560244211
957504342461
1020363430025
1186aa697414
123b43808461
131bc6a839a3
14db268b121
157e2b08d6a
hex4bdc14889

20363430025 has 48 divisors (see below), whose sum is σ = 28830029760. Its totient is φ = 14170982400.

The previous prime is 20363429993. The next prime is 20363430049. The reversal of 20363430025 is 52003436302.

It is not a de Polignac number, because 20363430025 - 25 = 20363429993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20363429975 and 20363430002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 300322 + ... + 361828.

It is an arithmetic number, because the mean of its divisors is an integer number (600625620).

Almost surely, 220363430025 is an apocalyptic number.

20363430025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20363430025 is a deficient number, since it is larger than the sum of its proper divisors (8466599735).

20363430025 is a wasteful number, since it uses less digits than its factorization.

20363430025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61594 (or 61589 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 20363430025 its reverse (52003436302), we get a palindrome (72366866327).

The spelling of 20363430025 in words is "twenty billion, three hundred sixty-three million, four hundred thirty thousand, twenty-five".

Divisors: 1 5 17 19 25 41 85 95 205 323 425 475 697 779 1025 1615 3485 3895 8075 13243 17425 19475 61507 66215 307535 331075 1045619 1168633 1537675 2521787 5228095 5843165 12608935 19866761 26140475 29215825 42870379 47913953 63044675 99333805 214351895 239569765 496669025 814537201 1071759475 1197848825 4072686005 20363430025