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25130443312 = 241329293803
BaseRepresentation
bin10111011001111001…
…000010001000110000
32101212101100210101201
4113121321002020300
5402431343141222
615313400340544
71546520146402
oct273171021060
971771323351
1025130443312
11a726531017
124a54174754
1324a6578a00
141305820b72
159c138c427
hex5d9e42230

25130443312 has 30 divisors (see below), whose sum is σ = 52723750092. Its totient is φ = 11598664896.

The previous prime is 25130443249. The next prime is 25130443313. The reversal of 25130443312 is 21334403152.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25130443313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4644198 + ... + 4649605.

Almost surely, 225130443312 is an apocalyptic number.

It is an amenable number.

25130443312 is an abundant number, since it is smaller than the sum of its proper divisors (27593306780).

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

25130443312 is a wasteful number, since it uses less digits than its factorization.

25130443312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9293837 (or 9293818 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 25130443312 its reverse (21334403152), we get a palindrome (46464846464).

The spelling of 25130443312 in words is "twenty-five billion, one hundred thirty million, four hundred forty-three thousand, three hundred twelve".

Divisors: 1 2 4 8 13 16 26 52 104 169 208 338 676 1352 2704 9293803 18587606 37175212 74350424 120819439 148700848 241638878 483277756 966555512 1570652707 1933111024 3141305414 6282610828 12565221656 25130443312