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20030201223120 = 243351110325731847
BaseRepresentation
bin1001000110111101001010…
…00001110101011111010000
32121220212110011101121021000
410203132211001311133100
510111133323003114440
6110333425235102000
74135064026131024
oct443364501653720
977825404347230
1020030201223120
116422840449a70
1222b5ba1a41900
13b23abc270a6a
144d36772c6384
1524b0714ab730
hex1237a50757d0

20030201223120 has 640 divisors, whose sum is σ = 76293825454080. Its totient is φ = 4789801451520.

The previous prime is 20030201223113. The next prime is 20030201223167. The reversal of 20030201223120 is 2132210203002.

20030201223120 is a `hidden beast` number, since 20 + 0 + 302 + 0 + 1 + 223 + 120 = 666.

It is a super-2 number, since 2×200302012231202 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20030201223093 and 20030201223102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 628935037 + ... + 628966883.

It is an arithmetic number, because the mean of its divisors is an integer number (119209102272).

Almost surely, 220030201223120 is an apocalyptic number.

20030201223120 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 20030201223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38146912727040).

20030201223120 is an abundant number, since it is smaller than the sum of its proper divisors (56263624230960).

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

20030201223120 is a wasteful number, since it uses less digits than its factorization.

20030201223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32240 (or 32228 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20030201223120 its reverse (2132210203002), we get a palindrome (22162411426122).

The spelling of 20030201223120 in words is "twenty trillion, thirty billion, two hundred one million, two hundred twenty-three thousand, one hundred twenty".