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20225665430154 = 23210607105934579
BaseRepresentation
bin1001001100101001001111…
…00110100111001010001010
32122121112222101210010112100
410212110213212213022022
510122334130322231104
6111003313055254230
74155153562360602
oct446244746471212
978545871703470
1020225665430154
116498724942838
122327a5251a376
13b3936c963772
144dccdac21c02
152511b1622139
hex1265279a728a

20225665430154 has 24 divisors (see below), whose sum is σ = 43826406960960. Its totient is φ = 6741252805608.

The previous prime is 20225665430141. The next prime is 20225665430161. The reversal of 20225665430154 is 45103456652202.

20225665430154 is a `hidden beast` number, since 2 + 0 + 2 + 2 + 5 + 6 + 65 + 430 + 154 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52776364 + ... + 53158215.

It is an arithmetic number, because the mean of its divisors is an integer number (1826100290040).

Almost surely, 220225665430154 is an apocalyptic number.

20225665430154 is an abundant number, since it is smaller than the sum of its proper divisors (23600741530806).

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

20225665430154 is a wasteful number, since it uses less digits than its factorization.

20225665430154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105945194 (or 105945191 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 20225665430154 in words is "twenty trillion, two hundred twenty-five billion, six hundred sixty-five million, four hundred thirty thousand, one hundred fifty-four".

Divisors: 1 2 3 6 9 18 10607 21214 31821 63642 95463 190926 105934579 211869158 317803737 635607474 953411211 1906822422 1123648079453 2247296158906 3370944238359 6741888476718 10112832715077 20225665430154