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55836243680 = 255749853789
BaseRepresentation
bin110100000000000110…
…010111011011100000
312100010022202001212012
4310000012113123200
51403323034244210
641352324252052
74014450145310
oct640006273340
9170108661765
1055836243680
1121753116338
12a9a3541028
13535ac31359
1429b98b3440
1516bbe32305
hexd001976e0

55836243680 has 48 divisors (see below), whose sum is σ = 150757860960. Its totient is φ = 19143854592.

The previous prime is 55836243637. The next prime is 55836243707. The reversal of 55836243680 is 8634263855.

It is a super-2 number, since 2×558362436802 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24925775 + ... + 24928014.

It is an arithmetic number, because the mean of its divisors is an integer number (3140788770).

Almost surely, 255836243680 is an apocalyptic number.

It is an amenable number.

55836243680 is an abundant number, since it is smaller than the sum of its proper divisors (94921617280).

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

55836243680 is a wasteful number, since it uses less digits than its factorization.

55836243680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49853811 (or 49853803 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 55836243680 in words is "fifty-five billion, eight hundred thirty-six million, two hundred forty-three thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 49853789 99707578 199415156 249268945 348976523 398830312 498537890 697953046 797660624 997075780 1395906092 1595321248 1744882615 1994151560 2791812184 3489765230 3988303120 5583624368 6979530460 7976606240 11167248736 13959060920 27918121840 55836243680