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55071260 = 225101137199
BaseRepresentation
bin1101001000010…
…1001000011100
310211121220120022
43102011020130
5103044240020
65244211312
71236045416
oct322051034
9124556508
1055071260
11290a4942
1216539b38
13b54275a
1474579b6
154c7c625
hex348521c

55071260 has 48 divisors (see below), whose sum is σ = 118238400. Its totient is φ = 21542400.

The previous prime is 55071259. The next prime is 55071277. The reversal of 55071260 is 6217055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276641 + ... + 276839.

It is an arithmetic number, because the mean of its divisors is an integer number (2463300).

Almost surely, 255071260 is an apocalyptic number.

It is an amenable number.

55071260 is an abundant number, since it is smaller than the sum of its proper divisors (63167140).

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

55071260 is a wasteful number, since it uses less digits than its factorization.

55071260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 55071260 is about 7421.0012801508. The cubic root of 55071260 is about 380.4594166447.

The spelling of 55071260 in words is "fifty-five million, seventy-one thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 101 137 199 202 274 398 404 505 548 685 796 995 1010 1370 1990 2020 2740 3980 13837 20099 27263 27674 40198 54526 55348 69185 80396 100495 109052 136315 138370 200990 272630 276740 401980 545260 2753563 5507126 11014252 13767815 27535630 55071260