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55838806 = 2107311839
BaseRepresentation
bin1101010100000…
…0100001010110
310220001220102221
43111000201112
5103243320211
65312452554
71245423232
oct325004126
9126056387
1055838806
1129579581
121684a15a
13b750c1a
1475b75c2
154d7ec71
hex3540856

55838806 has 16 divisors (see below), whose sum is σ = 84913920. Its totient is φ = 27536680.

The previous prime is 55838801. The next prime is 55838807. The reversal of 55838806 is 60883855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55838801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66135 + ... + 66973.

It is an arithmetic number, because the mean of its divisors is an integer number (5307120).

Almost surely, 255838806 is an apocalyptic number.

55838806 is a deficient number, since it is larger than the sum of its proper divisors (29075114).

55838806 is a wasteful number, since it uses less digits than its factorization.

55838806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 55838806 is about 7472.5367847873. The cubic root of 55838806 is about 382.2187968352.

It can be divided in two parts, 55838 and 806, that added together give a square (56644 = 2382).

The spelling of 55838806 in words is "fifty-five million, eight hundred thirty-eight thousand, eight hundred six".

Divisors: 1 2 107 214 311 622 839 1678 33277 66554 89773 179546 260929 521858 27919403 55838806