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55141994 = 2233138669
BaseRepresentation
bin1101001001011…
…0011001101010
310211202111121002
43102112121222
5103104020434
65245515002
71236461555
oct322263152
9124674532
1055141994
1129142aa6
1216572a62
13b5689cb
14747569c
154c9357e
hex349666a

55141994 has 16 divisors (see below), whose sum is σ = 89095680. Its totient is φ = 25520880.

The previous prime is 55141993. The next prime is 55142023. The reversal of 55141994 is 49914155.

55141994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55141991) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17909 + ... + 20760.

It is an arithmetic number, because the mean of its divisors is an integer number (5568480).

Almost surely, 255141994 is an apocalyptic number.

55141994 is a deficient number, since it is larger than the sum of its proper divisors (33953686).

55141994 is a wasteful number, since it uses less digits than its factorization.

55141994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38725.

The product of its digits is 32400, while the sum is 38.

The square root of 55141994 is about 7425.7655497598. The cubic root of 55141994 is about 380.6222354049.

The spelling of 55141994 in words is "fifty-five million, one hundred forty-one thousand, nine hundred ninety-four".

Divisors: 1 2 23 31 46 62 713 1426 38669 77338 889387 1198739 1778774 2397478 27570997 55141994