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20153104400000 = 27551113352327
BaseRepresentation
bin1001001010100010000101…
…01000001111111010000000
32122100121200111101212202002
410211101002220033322000
510120142024211300000
6110510113000443132
74150004466654665
oct445210250177200
978317614355662
1020153104400000
11646a97a052920
122315981a794a8
13b32577a6bb70
144d95b602da6c
1524e36627c8d5
hex125442a0fe80

20153104400000 has 384 divisors, whose sum is σ = 58956115317120. Its totient is φ = 6764659200000.

The previous prime is 20153104399991. The next prime is 20153104400027. The reversal of 20153104400000 is 440135102.

It is a super-2 number, since 2×201531044000002 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57023837 + ... + 57376163.

It is an arithmetic number, because the mean of its divisors is an integer number (153531550305).

Almost surely, 220153104400000 is an apocalyptic number.

20153104400000 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 20153104400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29478057658560).

20153104400000 is an abundant number, since it is smaller than the sum of its proper divisors (38803010917120).

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

20153104400000 is an equidigital number, since it uses as much as digits as its factorization.

20153104400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352390 (or 352358 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20153104400000 its reverse (440135102), we get a palindrome (20153544535102).

The spelling of 20153104400000 in words is "twenty trillion, one hundred fifty-three billion, one hundred four million, four hundred thousand".