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20310453023045 = 5233743227489019
BaseRepresentation
bin1001001111000111001010…
…10101100111000101000101
32122220122211101121010022112
410213203211111213011011
510130231301433214140
6111110254315510405
74164244650126143
oct447434525470505
978818741533275
1020310453023045
11652068426a259
122340375758405
13b44362917783
1450306176a593
152534c508bc65
hex1278e5567145

20310453023045 has 64 divisors (see below), whose sum is σ = 26844803758080. Its totient is φ = 14705092055808.

The previous prime is 20310453023033. The next prime is 20310453023071. The reversal of 20310453023045 is 54032035401302.

It is a cyclic number.

It is not a de Polignac number, because 20310453023045 - 210 = 20310453022021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41288546 + ... + 41777564.

It is an arithmetic number, because the mean of its divisors is an integer number (419450058720).

Almost surely, 220310453023045 is an apocalyptic number.

It is an amenable number.

20310453023045 is a deficient number, since it is larger than the sum of its proper divisors (6534350735035).

20310453023045 is a wasteful number, since it uses less digits than its factorization.

20310453023045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489354.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 20310453023045 its reverse (54032035401302), we get a palindrome (74342488424347).

The spelling of 20310453023045 in words is "twenty trillion, three hundred ten billion, four hundred fifty-three million, twenty-three thousand, forty-five".

Divisors: 1 5 23 37 43 115 185 215 227 851 989 1135 1591 4255 4945 5221 7955 8399 9761 26105 36593 41995 48805 182965 193177 224503 361157 489019 965885 1122515 1805785 2445095 8306611 11247437 18093703 21027817 41533055 56237185 90468515 105139085 111007313 416155169 483639791 555036565 778029229 2080775845 2418198955 2553168199 3890146145 4107270581 4773314459 12765840995 17894672267 20536352905 23866572295 89473361335 94467223363 109786232557 176612634983 472336116815 548931162785 883063174915 4062090604609 20310453023045