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55380395 = 571582297
BaseRepresentation
bin1101001101000…
…0100110101011
310212012121121202
43103100212223
5103134133040
65254554415
71241503610
oct323204653
9125177552
1055380395
1129296124
1216668a0b
13b620385
1474d8507
154cde015
hex34d09ab

55380395 has 8 divisors (see below), whose sum is σ = 75950304. Its totient is φ = 37975104.

The previous prime is 55380371. The next prime is 55380397. The reversal of 55380395 is 59308355.

55380395 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 a cyclic number.

It is not a de Polignac number, because 55380395 - 26 = 55380331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55380397) 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, 791114 + ... + 791183.

It is an arithmetic number, because the mean of its divisors is an integer number (9493788).

Almost surely, 255380395 is an apocalyptic number.

55380395 is a deficient number, since it is larger than the sum of its proper divisors (20569909).

55380395 is a wasteful number, since it uses less digits than its factorization.

55380395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582309.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 55380395 is about 7441.8005213792. The cubic root of 55380395 is about 381.1699744246.

The spelling of 55380395 in words is "fifty-five million, three hundred eighty thousand, three hundred ninety-five".

Divisors: 1 5 7 35 1582297 7911485 11076079 55380395