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25130213440000 = 2954167470251
BaseRepresentation
bin1011011011011000101010…
…11100011111101000000000
310021222102110210010202022221
411231230111130133220000
511243213134120040000
6125240354412340424
75202412054533334
oct555542534375000
9107872423122287
1025130213440000
118009733386319
12299a4a1774714
1311039cc531386
1462c44758d7c4
152d8a6402c61a
hex16db1571fa00

25130213440000 has 200 divisors, whose sum is σ = 63119943377568. Its totient is φ = 9991872000000.

The previous prime is 25130213439943. The next prime is 25130213440063. The reversal of 25130213440000 is 4431203152.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 53204875 + ... + 53675125.

Almost surely, 225130213440000 is an apocalyptic number.

25130213440000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25130213440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31559971688784).

25130213440000 is an abundant number, since it is smaller than the sum of its proper divisors (37989729937568).

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

25130213440000 is an frugal number, since it uses more digits than its factorization.

25130213440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470456 (or 470425 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 25130213440000 its reverse (4431203152), we get a palindrome (25134644643152).

The spelling of 25130213440000 in words is "twenty-five trillion, one hundred thirty billion, two hundred thirteen million, four hundred forty thousand".