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20125240014400 = 265229795490299
BaseRepresentation
bin1001001001101110001011…
…10010000011011001000000
32122020221202120122102120121
410210313011302003121000
510114212442420430100
6110445224014150024
74145000131414123
oct444670562033100
978227676572517
1020125240014400
11645a080362574
1223104a61b2314
13b2ca56c84231
144d80d14a23ba
1524d784da351a
hex124dc5c83640

20125240014400 has 168 divisors, whose sum is σ = 51876746640000. Its totient is φ = 7674118932480.

The previous prime is 20125240014379. The next prime is 20125240014401. The reversal of 20125240014400 is 441004252102.

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

It is not an unprimeable number, because it can be changed into a prime (20125240014401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 920451 + ... + 6410749.

Almost surely, 220125240014400 is an apocalyptic number.

20125240014400 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 20125240014400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25938373320000).

20125240014400 is an abundant number, since it is smaller than the sum of its proper divisors (31751506625600).

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

20125240014400 is a wasteful number, since it uses less digits than its factorization.

20125240014400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490429 (or 5490414 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 20125240014400 its reverse (441004252102), we get a palindrome (20566244266502).

The spelling of 20125240014400 in words is "twenty trillion, one hundred twenty-five billion, two hundred forty million, fourteen thousand, four hundred".