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25003131220144 = 2471141494993887
BaseRepresentation
bin1011010111101011111101…
…10000010011000010110000
310021112021110012112002121101
411223311332300103002300
511234122403043021034
6125102140243334144
75160262620511540
oct553657660230260
9107467405462541
1025003131220144
117a6a84a81a640
122979936081354
1310c4a28cb448c
1462622d807320
152d55c741b514
hex16bd7ec130b0

25003131220144 has 80 divisors (see below), whose sum is σ = 61870276048896. Its totient is φ = 9503882611200.

The previous prime is 25003131220141. The next prime is 25003131220153. The reversal of 25003131220144 is 44102213130052.

25003131220144 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (25003131220141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247446432 + ... + 247547455.

Almost surely, 225003131220144 is an apocalyptic number.

It is an amenable number.

25003131220144 is an abundant number, since it is smaller than the sum of its proper divisors (36867144828752).

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

25003131220144 is a wasteful number, since it uses less digits than its factorization.

25003131220144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494993954 (or 494993948 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 25003131220144 its reverse (44102213130052), we get a palindrome (69105344350196).

The spelling of 25003131220144 in words is "twenty-five trillion, three billion, one hundred thirty-one million, two hundred twenty thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 11 14 16 22 28 41 44 56 77 82 88 112 154 164 176 287 308 328 451 574 616 656 902 1148 1232 1804 2296 3157 3608 4592 6314 7216 12628 25256 50512 494993887 989987774 1979975548 3464957209 3959951096 5444932757 6929914418 7919902192 10889865514 13859828836 20294749367 21779731028 27719657672 38114529299 40589498734 43559462056 55439315344 76229058598 81178997468 87118924112 142063245569 152458117196 162357994936 223242243037 284126491138 304916234392 324715989872 446484486074 568252982276 609832468784 892968972148 1136505964552 1562695701259 1785937944296 2273011929104 3125391402518 3571875888592 6250782805036 12501565610072 25003131220144