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55383807 = 3171085957
BaseRepresentation
bin1101001101000…
…1011011111111
310212012210022010
43103101123333
5103134240212
65255022303
71241516553
oct323213377
9125183263
1055383807
1129298746
121666a993
13b621aab
1474d9863
154ce003c
hex34d16ff

55383807 has 8 divisors (see below), whose sum is σ = 78188976. Its totient is φ = 34750592.

The previous prime is 55383767. The next prime is 55383817. The reversal of 55383807 is 70838355.

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 55383807 - 210 = 55382783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55383817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542928 + ... + 543029.

It is an arithmetic number, because the mean of its divisors is an integer number (9773622).

Almost surely, 255383807 is an apocalyptic number.

55383807 is a deficient number, since it is larger than the sum of its proper divisors (22805169).

55383807 is a wasteful number, since it uses less digits than its factorization.

55383807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085977.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 55383807 is about 7442.0297634449. The cubic root of 55383807 is about 381.1778022563.

The spelling of 55383807 in words is "fifty-five million, three hundred eighty-three thousand, eight hundred seven".

Divisors: 1 3 17 51 1085957 3257871 18461269 55383807