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25420341200 = 245263550853
BaseRepresentation
bin10111101011001010…
…111001111111010000
32102121120212010112112
4113223022321333100
5404030101404300
615402234044452
71556640222632
oct275312717720
972546763475
1025420341200
11a865135651
124b15279728
13252164a617
141332124a52
159dba52e35
hex5eb2b9fd0

25420341200 has 30 divisors (see below), whose sum is σ = 61072370694. Its totient is φ = 10168136320.

The previous prime is 25420341197. The next prime is 25420341211. The reversal of 25420341200 is 214302452.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 10705984 + 25409635216 = 3272^2 + 159404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31775027 + ... + 31775826.

Almost surely, 225420341200 is an apocalyptic number.

25420341200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25420341200 is an abundant number, since it is smaller than the sum of its proper divisors (35652029494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25420341200 is a wasteful number, since it uses less digits than its factorization.

25420341200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63550871 (or 63550860 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 25420341200 its reverse (214302452), we get a palindrome (25634643652).

The spelling of 25420341200 in words is "twenty-five billion, four hundred twenty million, three hundred forty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 63550853 127101706 254203412 317754265 508406824 635508530 1016813648 1271017060 1588771325 2542034120 3177542650 5084068240 6355085300 12710170600 25420341200