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55105994 = 2139198223
BaseRepresentation
bin1101001000110…
…1100111001010
310211200200012202
43102031213022
5103101342434
65245040202
71236251606
oct322154712
9124620182
1055105994
1129118a49
1216556062
13b5554c8
147466506
154c87a7e
hex348d9ca

55105994 has 8 divisors (see below), whose sum is σ = 83254080. Its totient is φ = 27354636.

The previous prime is 55105979. The next prime is 55106033. The reversal of 55105994 is 49950155.

55105994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98834 + ... + 99389.

It is an arithmetic number, because the mean of its divisors is an integer number (10406760).

Almost surely, 255105994 is an apocalyptic number.

55105994 is a deficient number, since it is larger than the sum of its proper divisors (28148086).

55105994 is a wasteful number, since it uses less digits than its factorization.

55105994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198364.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 55105994 is about 7423.3411614986. The cubic root of 55105994 is about 380.5393863669.

The spelling of 55105994 in words is "fifty-five million, one hundred five thousand, nine hundred ninety-four".

Divisors: 1 2 139 278 198223 396446 27552997 55105994