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8820272445 = 354349127851
BaseRepresentation
bin10000011011011101…
…01010110100111101
3211202200220021011020
420031232222310331
5121030442204240
64015121014353
7431401036005
oct101556526475
924680807136
108820272445
1138168a5266
121861a843b9
13aa747342a
145d95cd005
153695290d0
hex20dbaad3d

8820272445 has 32 divisors (see below), whose sum is σ = 14470562304. Its totient is φ = 4585224000.

The previous prime is 8820272443. The next prime is 8820272459. The reversal of 8820272445 is 5442720288.

It is not a de Polignac number, because 8820272445 - 21 = 8820272443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8820272397 and 8820272406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8820272443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302770 + ... + 330620.

It is an arithmetic number, because the mean of its divisors is an integer number (452205072).

Almost surely, 28820272445 is an apocalyptic number.

It is an amenable number.

8820272445 is a deficient number, since it is larger than the sum of its proper divisors (5650289859).

8820272445 is a wasteful number, since it uses less digits than its factorization.

8820272445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28393.

The product of its (nonzero) digits is 286720, while the sum is 42.

The square root of 8820272445 is about 93916.3055331714. The cubic root of 8820272445 is about 2066.1443818801.

The spelling of 8820272445 in words is "eight billion, eight hundred twenty million, two hundred seventy-two thousand, four hundred forty-five".

Divisors: 1 3 5 15 43 129 215 491 645 1473 2455 7365 21113 27851 63339 83553 105565 139255 316695 417765 1197593 3592779 5987965 13674841 17963895 41024523 68374205 205122615 588018163 1764054489 2940090815 8820272445