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55302113 = 71778903
BaseRepresentation
bin1101001011110…
…1011111100001
310212001122020102
43102331133201
5103124131423
65253152145
71241026436
oct322753741
9125048212
1055302113
1129242329
121662b655
13b5c3859
1474b7b8d
154cc5c28
hex34bd7e1

55302113 has 4 divisors (see below), whose sum is σ = 56081088. Its totient is φ = 54523140.

The previous prime is 55302083. The next prime is 55302119. The reversal of 55302113 is 31120355.

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 a cyclic number.

It is not a de Polignac number, because 55302113 - 214 = 55285729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55302119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389381 + ... + 389522.

It is an arithmetic number, because the mean of its divisors is an integer number (14020272).

Almost surely, 255302113 is an apocalyptic number.

It is an amenable number.

55302113 is a deficient number, since it is larger than the sum of its proper divisors (778975).

55302113 is an equidigital number, since it uses as much as digits as its factorization.

55302113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778974.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 55302113 is about 7436.5390471643. The cubic root of 55302113 is about 380.9902909924.

Adding to 55302113 its reverse (31120355), we get a palindrome (86422468).

The spelling of 55302113 in words is "fifty-five million, three hundred two thousand, one hundred thirteen".

Divisors: 1 71 778903 55302113