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55354702220 = 22519145670269
BaseRepresentation
bin110011100011011001…
…011011100110001100
312021212202122020011022
4303203121123212030
51401331300432340
641232443213312
73666512130326
oct634331334614
9167782566138
1055354702220
1121526317094
12a88a217238
1352b223cb8c
142971964616
15168ea133b5
hexce365b98c

55354702220 has 24 divisors (see below), whose sum is σ = 122363026800. Its totient is φ = 20976518592.

The previous prime is 55354702213. The next prime is 55354702237. The reversal of 55354702220 is 2220745355.

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 7 ways as a sum of consecutive naturals, for example, 72834755 + ... + 72835514.

It is an arithmetic number, because the mean of its divisors is an integer number (5098459450).

Almost surely, 255354702220 is an apocalyptic number.

It is an amenable number.

55354702220 is an abundant number, since it is smaller than the sum of its proper divisors (67008324580).

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

55354702220 is a wasteful number, since it uses less digits than its factorization.

55354702220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145670297 (or 145670295 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 35.

The spelling of 55354702220 in words is "fifty-five billion, three hundred fifty-four million, seven hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 145670269 291340538 582681076 728351345 1456702690 2767735111 2913405380 5535470222 11070940444 13838675555 27677351110 55354702220