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42247620220 = 22513787320639
BaseRepresentation
bin100111010110001001…
…111000011001111100
311001001022100110210211
4213112021320121330
51143010342321340
631224105042204
73023635563301
oct472611703174
9131038313724
1042247620220
1116a0a753413
128230786364
133ca3918060
14208acc30a8
151173ead5ea
hex9d627867c

42247620220 has 48 divisors (see below), whose sum is σ = 95561383680. Its totient is φ = 15596384256.

The previous prime is 42247620209. The next prime is 42247620253. The reversal of 42247620220 is 2202674224.

It is a super-2 number, since 2×422476202202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2036661 + ... + 2057299.

It is an arithmetic number, because the mean of its divisors is an integer number (1990862160).

Almost surely, 242247620220 is an apocalyptic number.

It is an amenable number.

42247620220 is an abundant number, since it is smaller than the sum of its proper divisors (53313763460).

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

42247620220 is a wasteful number, since it uses less digits than its factorization.

42247620220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28534 (or 28532 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 31.

The spelling of 42247620220 in words is "forty-two billion, two hundred forty-seven million, six hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 7873 15746 20639 31492 39365 41278 78730 82556 102349 103195 157460 204698 206390 268307 409396 412780 511745 536614 1023490 1073228 1341535 2046980 2683070 5366140 162490847 324981694 649963388 812454235 1624908470 2112381011 3249816940 4224762022 8449524044 10561905055 21123810110 42247620220