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472772386112221 = 13279148923781739
BaseRepresentation
bin110101101111110111110011…
…0001000100100001011011101
32021222221121011110110122010201
41223133233212020210023131
5443431400321321042341
64353300345202303501
7201403451312502136
oct15337574610441335
92258847143418121
10472772386112221
1112770470889a738
1245036557657b91
13173a5324835a00
1484a643c722c8d
15399cd649eb331
hex1adfbe62242dd

472772386112221 has 24 divisors (see below), whose sum is σ = 518765363664000. Its totient is φ = 430591767720192.

The previous prime is 472772386112203. The next prime is 472772386112233. The reversal of 472772386112221 is 122211683277274.

It is not a de Polignac number, because 472772386112221 - 211 = 472772386110173 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 (472772386112261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7988770 + ... + 31770508.

It is an arithmetic number, because the mean of its divisors is an integer number (21615223486000).

Almost surely, 2472772386112221 is an apocalyptic number.

It is an amenable number.

472772386112221 is a deficient number, since it is larger than the sum of its proper divisors (45992977551779).

472772386112221 is a wasteful number, since it uses less digits than its factorization.

472772386112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23783333 (or 23783320 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 55.

The spelling of 472772386112221 in words is "four hundred seventy-two trillion, seven hundred seventy-two billion, three hundred eighty-six million, one hundred twelve thousand, two hundred twenty-one".

Divisors: 1 13 79 169 1027 1489 13351 19357 117631 251641 1529203 19879639 23781739 309162607 1878757381 4019113891 24423845953 35411009371 317509997389 460343121823 2797469740309 5984460583699 36367106624017 472772386112221