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20023270001756 = 22717389108138029
BaseRepresentation
bin1001000110110000001111…
…11001010100110001011100
32121220012120010002002000122
410203120013321110301130
510111030124110024011
6110330321355014112
74134430203540410
oct443300771246134
977805503062018
1020023270001756
11641a903a0184a
1222b478873a338
13b23256299748
144d31ba950d40
1524acb7c2b3db
hex123607e54c5c

20023270001756 has 48 divisors (see below), whose sum is σ = 42511222353600. Its totient is φ = 8055850533888.

The previous prime is 20023270001753. The next prime is 20023270001789. The reversal of 20023270001756 is 65710007232002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023270001753) 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, 53883851 + ... + 54254178.

It is an arithmetic number, because the mean of its divisors is an integer number (885650465700).

Almost surely, 220023270001756 is an apocalyptic number.

It is an amenable number.

20023270001756 is an abundant number, since it is smaller than the sum of its proper divisors (22487952351844).

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

20023270001756 is a wasteful number, since it uses less digits than its factorization.

20023270001756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108138446 (or 108138444 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

Adding to 20023270001756 its reverse (65710007232002), we get a palindrome (85733277233758).

The spelling of 20023270001756 in words is "twenty trillion, twenty-three billion, two hundred seventy million, one thousand, seven hundred fifty-six".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 389 476 778 1556 2723 5446 6613 10892 13226 26452 46291 92582 185164 108138029 216276058 432552116 756966203 1513932406 1838346493 3027864812 3676692986 7353385972 12868425451 25736850902 42065693281 51473701804 84131386562 168262773124 294459852967 588919705934 715116785777 1177839411868 1430233571554 2860467143108 5005817500439 10011635000878 20023270001756