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55103051 = 283719423
BaseRepresentation
bin1101001000110…
…0111001001011
310211200112011202
43102030321023
5103101244201
65245014415
71236240203
oct322147113
9124615152
1055103051
1129116813
121655440b
13b554073
147465403
154c86c6b
hex348ce4b

55103051 has 4 divisors (see below), whose sum is σ = 55125312. Its totient is φ = 55080792.

The previous prime is 55103047. The next prime is 55103063. The reversal of 55103051 is 15030155.

It is a happy number.

55103051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55103051 - 22 = 55103047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55103351) 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 3 ways as a sum of consecutive naturals, for example, 6875 + ... + 12548.

It is an arithmetic number, because the mean of its divisors is an integer number (13781328).

Almost surely, 255103051 is an apocalyptic number.

55103051 is a deficient number, since it is larger than the sum of its proper divisors (22261).

55103051 is a wasteful number, since it uses less digits than its factorization.

55103051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22260.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 55103051 is about 7423.1429327476. The cubic root of 55103051 is about 380.5326118628.

The spelling of 55103051 in words is "fifty-five million, one hundred three thousand, fifty-one".

Divisors: 1 2837 19423 55103051