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20310302020613 = 1131188593158227
BaseRepresentation
bin1001001111000110111000…
…10101100101010000000101
32122220122102212110101220212
410213203130111211100011
510130230444304124423
6111110231323205205
74164241134462623
oct447433425452005
978818385411825
1020310302020613
116520607002960
122340333076805
13b4433a557517
145030496a0513
152534b6bb0578
hex1278dc565405

20310302020613 has 16 divisors (see below), whose sum is σ = 22872645150720. Its totient is φ = 17867347772400.

The previous prime is 20310302020583. The next prime is 20310302020637. The reversal of 20310302020613 is 31602020301302.

It is a cyclic number.

It is not a de Polignac number, because 20310302020613 - 26 = 20310302020549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310302080613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4851806 + ... + 8010032.

It is an arithmetic number, because the mean of its divisors is an integer number (1429540321920).

Almost surely, 220310302020613 is an apocalyptic number.

It is an amenable number.

20310302020613 is a deficient number, since it is larger than the sum of its proper divisors (2562343130107).

20310302020613 is a wasteful number, since it uses less digits than its factorization.

20310302020613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177128.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20310302020613 its reverse (31602020301302), we get a palindrome (51912322321915).

The spelling of 20310302020613 in words is "twenty trillion, three hundred ten billion, three hundred two million, twenty thousand, six hundred thirteen".

Divisors: 1 11 31 341 18859 207449 584629 3158227 6430919 34740497 97905037 1076955407 59561002993 655171032923 1846391092783 20310302020613