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55368340 = 2252768417
BaseRepresentation
bin1101001100110…
…1101010010100
310212012000002021
43103031222110
5103133241330
65254422524
71241423506
oct323155224
9125160067
1055368340
1129288065
1216661a44
13b617a41
1474d3d76
154cda67a
hex34cda94

55368340 has 12 divisors (see below), whose sum is σ = 116273556. Its totient is φ = 22147328.

The previous prime is 55368311. The next prime is 55368353. The reversal of 55368340 is 4386355.

55368340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5750404 + 49617936 = 2398^2 + 7044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55368296 and 55368305.

It is a congruent number.

It is an unprimeable number.

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, 1384189 + ... + 1384228.

It is an arithmetic number, because the mean of its divisors is an integer number (9689463).

Almost surely, 255368340 is an apocalyptic number.

It is an amenable number.

55368340 is an abundant number, since it is smaller than the sum of its proper divisors (60905216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55368340 is a wasteful number, since it uses less digits than its factorization.

55368340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768426 (or 2768424 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 55368340 is about 7440.9905254610. The cubic root of 55368340 is about 381.1423151931.

The spelling of 55368340 in words is "fifty-five million, three hundred sixty-eight thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 2768417 5536834 11073668 13842085 27684170 55368340