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55078167 = 342143609
BaseRepresentation
bin1101001000011…
…0110100010111
310211122021001010
43102012310113
5103100000132
65244303303
71236104514
oct322066427
9124567033
1055078167
11290aa051
1216541b33
13b545941
14745a30b
154c7e6cc
hex3486d17

55078167 has 8 divisors (see below), whose sum is σ = 73613680. Its totient is φ = 36630720.

The previous prime is 55078159. The next prime is 55078187. The reversal of 55078167 is 76187055.

55078167 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 not a de Polignac number, because 55078167 - 23 = 55078159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55078157) 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, 20542 + ... + 23067.

It is an arithmetic number, because the mean of its divisors is an integer number (9201710).

Almost surely, 255078167 is an apocalyptic number.

55078167 is a deficient number, since it is larger than the sum of its proper divisors (18535513).

55078167 is a wasteful number, since it uses less digits than its factorization.

55078167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44033.

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 55078167 is about 7421.4666340286. The cubic root of 55078167 is about 380.4753216336.

The spelling of 55078167 in words is "fifty-five million, seventy-eight thousand, one hundred sixty-seven".

Divisors: 1 3 421 1263 43609 130827 18359389 55078167