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55183069 = 311780099
BaseRepresentation
bin1101001010000…
…0011011011101
310211211120221101
43102200123131
5103111324234
65250433101
71240022404
oct322403335
9124746841
1055183069
1129170947
1216592791
13b581606
14748663b
154ca0814
hex34a06dd

55183069 has 4 divisors (see below), whose sum is σ = 56963200. Its totient is φ = 53402940.

The previous prime is 55183057. The next prime is 55183081. The reversal of 55183069 is 96038155.

55183069 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (55183057) and next prime (55183081).

It is a cyclic number.

It is not a de Polignac number, because 55183069 - 29 = 55182557 is a prime.

It is a super-2 number, since 2×551830692 = 6090342208517522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55183039) 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, 890019 + ... + 890080.

It is an arithmetic number, because the mean of its divisors is an integer number (14240800).

Almost surely, 255183069 is an apocalyptic number.

It is an amenable number.

55183069 is a deficient number, since it is larger than the sum of its proper divisors (1780131).

55183069 is a wasteful number, since it uses less digits than its factorization.

55183069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780130.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 55183069 is about 7428.5307430205. The cubic root of 55183069 is about 380.7167198253.

The spelling of 55183069 in words is "fifty-five million, one hundred eighty-three thousand, sixty-nine".

Divisors: 1 31 1780099 55183069