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20251104540000 = 253545950911239
BaseRepresentation
bin1001001101011000100111…
…11001000111010101100000
32122200222122021221210210220
410212230103321013111200
510123243230230240000
6111023121243523040
74160044151263605
oct446542371072540
978628567853726
1020251104540000
1164a8499627564
122330971b29480
13b3b895152b99
145002316306ac
15251b9eb311a0
hex126b13e47560

20251104540000 has 480 divisors, whose sum is σ = 67692306528000. Its totient is φ = 5297862912000.

The previous prime is 20251104539987. The next prime is 20251104540013. The reversal of 20251104540000 is 4540115202.

It is an interprime number because it is at equal distance from previous prime (20251104539987) and next prime (20251104540013).

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-2 number, since 2×202511045400002 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1801854381 + ... + 1801865619.

It is an arithmetic number, because the mean of its divisors is an integer number (141025638600).

Almost surely, 220251104540000 is an apocalyptic number.

20251104540000 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 20251104540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33846153264000).

20251104540000 is an abundant number, since it is smaller than the sum of its proper divisors (47441201988000).

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

20251104540000 is a wasteful number, since it uses less digits than its factorization.

20251104540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11840 (or 11817 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 20251104540000 its reverse (4540115202), we get a palindrome (20255644655202).

The spelling of 20251104540000 in words is "twenty trillion, two hundred fifty-one billion, one hundred four million, five hundred forty thousand".